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Citing Sources: What are citations and why should I use them?
What is a citation.
Citations are a way of giving credit when certain material in your work came from another source. It also gives your readers the information necessary to find that source again-- it provides an important roadmap to your research process. Whenever you use sources such as books, journals or websites in your research, you must give credit to the original author by citing the source.
Why do researchers cite?
Scholarship is a conversation and scholars use citations not only to give credit to original creators and thinkers, but also to add strength and authority to their own work. By citing their sources, scholars are placing their work in a specific context to show where they “fit” within the larger conversation. Citations are also a great way to leave a trail intended to help others who may want to explore the conversation or use the sources in their own work.
In short, citations
(1) give credit
(2) add strength and authority to your work
(3) place your work in a specific context
(4) leave a trail for other scholars
"Good citations should reveal your sources, not conceal them. They should honeslty reflect the research you conducted." (Lipson 4)
Lipson, Charles. "Why Cite?" Cite Right: A Quick Guide to Citation Styles--MLA, APA, Chicago, the Sciences, Professions, and More . Chicago: U of Chicago, 2006. Print.
What does a citation look like?
Different subject disciplines call for citation information to be written in very specific order, capitalization, and punctuation. There are therefore many different style formats. Three popular citation formats are MLA Style (for humanities articles) and APA or Chicago (for social sciences articles).
MLA style (print journal article):
Whisenant, Warren A. "How Women Have Fared as Interscholastic Athletic Administrators Since the Passage of Title IX." Sex Roles Vol. 49.3 (2003): 179-182.
APA style (print journal article):
Whisenant, W. A. (2003) How Women Have Fared as Interscholastic Athletic Administrators Since the Passage of Title IX. Sex Roles , 49 (3), 179-182.
Chicago style (print journal article):
Whisenant, Warren A. "How Women Have Fared as Interscholastic Athletic Administrators Since the Passage of Title IX." Sex Roles 49, no. 3 (2003): 179-182.
No matter which style you use, all citations require the same basic information:
- Author or Creator
- Container (e.g., Journal or magazine, website, edited book)
- Date of creation or publication
- Publisher
You are most likely to have easy access to all of your citation information when you find it in the first place. Take note of this information up front, and it will be much easier to cite it effectively later.
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Citing sources: Overview
- Citation style guides
Manage your references
Use these tools to help you organize and cite your references:
- Citation Management and Writing Tools
If you have questions after consulting this guide about how to cite, please contact your advisor/professor or the writing and communication center .
Why citing is important
It's important to cite sources you used in your research for several reasons:
- To show your reader you've done proper research by listing sources you used to get your information
- To be a responsible scholar by giving credit to other researchers and acknowledging their ideas
- To avoid plagiarism by quoting words and ideas used by other authors
- To allow your reader to track down the sources you used by citing them accurately in your paper by way of footnotes, a bibliography or reference list
About citations
Citing a source means that you show, within the body of your text, that you took words, ideas, figures, images, etc. from another place.
Citations are a short way to uniquely identify a published work (e.g. book, article, chapter, web site). They are found in bibliographies and reference lists and are also collected in article and book databases.
Citations consist of standard elements, and contain all the information necessary to identify and track down publications, including:
- author name(s)
- titles of books, articles, and journals
- date of publication
- page numbers
- volume and issue numbers (for articles)
Citations may look different, depending on what is being cited and which style was used to create them. Choose an appropriate style guide for your needs. Here is an example of an article citation using four different citation styles. Notice the common elements as mentioned above:
Author - R. Langer
Article Title - New Methods of Drug Delivery
Source Title - Science
Volume and issue - Vol 249, issue 4976
Publication Date - 1990
Page numbers - 1527-1533
American Chemical Society (ACS) style:
Langer, R. New Methods of Drug Delivery. Science 1990 , 249 , 1527-1533.
IEEE Style:
R. Langer, " New Methods of Drug Delivery," Science , vol. 249 , pp. 1527-1533 , SEP 28, 1990 .
American Psychological Association (APA) style:
Langer, R. (1990) . New methods of drug delivery. Science , 249 (4976), 1527-1533.
Modern Language Association (MLA) style:
Langer, R. " New Methods of Drug Delivery." Science 249.4976 (1990) : 1527-33.
What to cite
You must cite:
- Facts, figures, ideas, or other information that is not common knowledge
Publications that must be cited include: books, book chapters, articles, web pages, theses, etc.
Another person's exact words should be quoted and cited to show proper credit
When in doubt, be safe and cite your source!
Avoiding plagiarism
Plagiarism occurs when you borrow another's words (or ideas) and do not acknowledge that you have done so. In this culture, we consider our words and ideas intellectual property; like a car or any other possession, we believe our words belong to us and cannot be used without our permission.
Plagiarism is a very serious offense. If it is found that you have plagiarized -- deliberately or inadvertently -- you may face serious consequences. In some instances, plagiarism has meant that students have had to leave the institutions where they were studying.
The best way to avoid plagiarism is to cite your sources - both within the body of your paper and in a bibliography of sources you used at the end of your paper.
Some useful links about plagiarism:
- MIT Academic Integrity Overview on citing sources and avoiding plagiarism at MIT.
- Avoiding Plagiarism From the MIT Writing and Communication Center.
- Plagiarism: What It is and How to Recognize and Avoid It From Indiana University's Writing Tutorial Services.
- Plagiarism- Overview A resource from Purdue University.
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- Last Updated: Jan 16, 2024 7:02 AM
- URL: https://libguides.mit.edu/citing
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Home » How to Cite Research Paper – All Formats and Examples
How to Cite Research Paper – All Formats and Examples
Table of Contents
Research Paper Citation
Research paper citation refers to the act of acknowledging and referencing a previously published work in a scholarly or academic paper . When citing sources, researchers provide information that allows readers to locate the original source, validate the claims or arguments made in the paper, and give credit to the original author(s) for their work.
The citation may include the author’s name, title of the publication, year of publication, publisher, and other relevant details that allow readers to trace the source of the information. Proper citation is a crucial component of academic writing, as it helps to ensure accuracy, credibility, and transparency in research.
How to Cite Research Paper
There are several formats that are used to cite a research paper. Follow the guide for the Citation of a Research Paper:
Last Name, First Name. Title of Book. Publisher, Year of Publication.
Example : Smith, John. The History of the World. Penguin Press, 2010.
Journal Article
Last Name, First Name. “Title of Article.” Title of Journal, vol. Volume Number, no. Issue Number, Year of Publication, pp. Page Numbers.
Example : Johnson, Emma. “The Effects of Climate Change on Agriculture.” Environmental Science Journal, vol. 10, no. 2, 2019, pp. 45-59.
Research Paper
Last Name, First Name. “Title of Paper.” Conference Name, Location, Date of Conference.
Example : Garcia, Maria. “The Importance of Early Childhood Education.” International Conference on Education, Paris, 5-7 June 2018.
Author’s Last Name, First Name. “Title of Webpage.” Website Title, Publisher, Date of Publication, URL.
Example : Smith, John. “The Benefits of Exercise.” Healthline, Healthline Media, 1 March 2022, https://www.healthline.com/health/benefits-of-exercise.
News Article
Last Name, First Name. “Title of Article.” Name of Newspaper, Date of Publication, URL.
Example : Robinson, Sarah. “Biden Announces New Climate Change Policies.” The New York Times, 22 Jan. 2021, https://www.nytimes.com/2021/01/22/climate/biden-climate-change-policies.html.
Author, A. A. (Year of publication). Title of book. Publisher.
Example: Smith, J. (2010). The History of the World. Penguin Press.
Author, A. A., Author, B. B., & Author, C. C. (Year of publication). Title of article. Title of Journal, volume number(issue number), page range.
Example: Johnson, E., Smith, K., & Lee, M. (2019). The Effects of Climate Change on Agriculture. Environmental Science Journal, 10(2), 45-59.
Author, A. A. (Year of publication). Title of paper. In Editor First Initial. Last Name (Ed.), Title of Conference Proceedings (page numbers). Publisher.
Example: Garcia, M. (2018). The Importance of Early Childhood Education. In J. Smith (Ed.), Proceedings from the International Conference on Education (pp. 60-75). Springer.
Author, A. A. (Year, Month Day of publication). Title of webpage. Website name. URL
Example: Smith, J. (2022, March 1). The Benefits of Exercise. Healthline. https://www.healthline.com/health/benefits-of-exercise
Author, A. A. (Year, Month Day of publication). Title of article. Newspaper name. URL.
Example: Robinson, S. (2021, January 22). Biden Announces New Climate Change Policies. The New York Times. https://www.nytimes.com/2021/01/22/climate/biden-climate-change-policies.html
Chicago/Turabian style
Please note that there are two main variations of the Chicago style: the author-date system and the notes and bibliography system. I will provide examples for both systems below.
Author-Date system:
- In-text citation: (Author Last Name Year, Page Number)
- Reference list: Author Last Name, First Name. Year. Title of Book. Place of publication: Publisher.
- In-text citation: (Smith 2005, 28)
- Reference list: Smith, John. 2005. The History of America. New York: Penguin Press.
Notes and Bibliography system:
- Footnote/Endnote citation: Author First Name Last Name, Title of Book (Place of publication: Publisher, Year), Page Number.
- Bibliography citation: Author Last Name, First Name. Title of Book. Place of publication: Publisher, Year.
- Footnote/Endnote citation: John Smith, The History of America (New York: Penguin Press, 2005), 28.
- Bibliography citation: Smith, John. The History of America. New York: Penguin Press, 2005.
JOURNAL ARTICLES:
- Reference list: Author Last Name, First Name. Year. “Article Title.” Journal Title Volume Number (Issue Number): Page Range.
- In-text citation: (Johnson 2010, 45)
- Reference list: Johnson, Mary. 2010. “The Impact of Social Media on Society.” Journal of Communication 60(2): 39-56.
- Footnote/Endnote citation: Author First Name Last Name, “Article Title,” Journal Title Volume Number, Issue Number (Year): Page Range.
- Bibliography citation: Author Last Name, First Name. “Article Title.” Journal Title Volume Number, Issue Number (Year): Page Range.
- Footnote/Endnote citation: Mary Johnson, “The Impact of Social Media on Society,” Journal of Communication 60, no. 2 (2010): 39-56.
- Bibliography citation: Johnson, Mary. “The Impact of Social Media on Society.” Journal of Communication 60, no. 2 (2010): 39-56.
RESEARCH PAPERS:
- Reference list: Author Last Name, First Name. Year. “Title of Paper.” Conference Proceedings Title, Location, Date. Publisher, Page Range.
- In-text citation: (Jones 2015, 12)
- Reference list: Jones, David. 2015. “The Effects of Climate Change on Agriculture.” Proceedings of the International Conference on Climate Change, Paris, France, June 1-3, 2015. Springer, 10-20.
- Footnote/Endnote citation: Author First Name Last Name, “Title of Paper,” Conference Proceedings Title, Location, Date (Place of publication: Publisher, Year), Page Range.
- Bibliography citation: Author Last Name, First Name. “Title of Paper.” Conference Proceedings Title, Location, Date. Place of publication: Publisher, Year.
- Footnote/Endnote citation: David Jones, “The Effects of Climate Change on Agriculture,” Proceedings of the International Conference on Climate Change, Paris, France, June 1-3, 2015 (New York: Springer, 10-20).
- Bibliography citation: Jones, David. “The Effects of Climate Change on Agriculture.” Proceedings of the International Conference on Climate Change, Paris, France, June 1-3, 2015. New York: Springer, 10-20.
- In-text citation: (Author Last Name Year)
- Reference list: Author Last Name, First Name. Year. “Title of Webpage.” Website Name. URL.
- In-text citation: (Smith 2018)
- Reference list: Smith, John. 2018. “The Importance of Recycling.” Environmental News Network. https://www.enn.com/articles/54374-the-importance-of-recycling.
- Footnote/Endnote citation: Author First Name Last Name, “Title of Webpage,” Website Name, URL (accessed Date).
- Bibliography citation: Author Last Name, First Name. “Title of Webpage.” Website Name. URL (accessed Date).
- Footnote/Endnote citation: John Smith, “The Importance of Recycling,” Environmental News Network, https://www.enn.com/articles/54374-the-importance-of-recycling (accessed April 8, 2023).
- Bibliography citation: Smith, John. “The Importance of Recycling.” Environmental News Network. https://www.enn.com/articles/54374-the-importance-of-recycling (accessed April 8, 2023).
NEWS ARTICLES:
- Reference list: Author Last Name, First Name. Year. “Title of Article.” Name of Newspaper, Month Day.
- In-text citation: (Johnson 2022)
- Reference list: Johnson, Mary. 2022. “New Study Finds Link Between Coffee and Longevity.” The New York Times, January 15.
- Footnote/Endnote citation: Author First Name Last Name, “Title of Article,” Name of Newspaper (City), Month Day, Year.
- Bibliography citation: Author Last Name, First Name. “Title of Article.” Name of Newspaper (City), Month Day, Year.
- Footnote/Endnote citation: Mary Johnson, “New Study Finds Link Between Coffee and Longevity,” The New York Times (New York), January 15, 2022.
- Bibliography citation: Johnson, Mary. “New Study Finds Link Between Coffee and Longevity.” The New York Times (New York), January 15, 2022.
Harvard referencing style
Format: Author’s Last name, First initial. (Year of publication). Title of book. Publisher.
Example: Smith, J. (2008). The Art of War. Random House.
Journal article:
Format: Author’s Last name, First initial. (Year of publication). Title of article. Title of journal, volume number(issue number), page range.
Example: Brown, M. (2012). The impact of social media on business communication. Harvard Business Review, 90(12), 85-92.
Research paper:
Format: Author’s Last name, First initial. (Year of publication). Title of paper. In Editor’s First initial. Last name (Ed.), Title of book (page range). Publisher.
Example: Johnson, R. (2015). The effects of climate change on agriculture. In S. Lee (Ed.), Climate Change and Sustainable Development (pp. 45-62). Springer.
Format: Author’s Last name, First initial. (Year, Month Day of publication). Title of page. Website name. URL.
Example: Smith, J. (2017, May 23). The history of the internet. Encyclopedia Britannica. https://www.britannica.com/topic/history-of-the-internet
News article:
Format: Author’s Last name, First initial. (Year, Month Day of publication). Title of article. Title of newspaper, page number (if applicable).
Example: Thompson, E. (2022, January 5). New study finds coffee may lower risk of dementia. The New York Times, A1.
IEEE Format
Author(s). (Year of Publication). Title of Book. Publisher.
Smith, J. K. (2015). The Power of Habit: Why We Do What We Do in Life and Business. Random House.
Journal Article:
Author(s). (Year of Publication). Title of Article. Title of Journal, Volume Number (Issue Number), page numbers.
Johnson, T. J., & Kaye, B. K. (2016). Interactivity and the Future of Journalism. Journalism Studies, 17(2), 228-246.
Author(s). (Year of Publication). Title of Paper. Paper presented at Conference Name, Location.
Jones, L. K., & Brown, M. A. (2018). The Role of Social Media in Political Campaigns. Paper presented at the 2018 International Conference on Social Media and Society, Copenhagen, Denmark.
- Website: Author(s) or Organization Name. (Year of Publication or Last Update). Title of Webpage. Website Name. URL.
Example: National Aeronautics and Space Administration. (2019, August 29). NASA’s Mission to Mars. NASA. https://www.nasa.gov/topics/journeytomars/index.html
- News Article: Author(s). (Year of Publication). Title of Article. Name of News Source. URL.
Example: Johnson, M. (2022, February 16). Climate Change: Is it Too Late to Save the Planet? CNN. https://www.cnn.com/2022/02/16/world/climate-change-planet-scn/index.html
Vancouver Style
In-text citation: Use superscript numbers to cite sources in the text, e.g., “The study conducted by Smith and Johnson^1 found that…”.
Reference list citation: Format: Author(s). Title of book. Edition if any. Place of publication: Publisher; Year of publication.
Example: Smith J, Johnson L. Introduction to Molecular Biology. 2nd ed. New York: Wiley-Blackwell; 2015.
In-text citation: Use superscript numbers to cite sources in the text, e.g., “Several studies have reported that^1,2,3…”.
Reference list citation: Format: Author(s). Title of article. Abbreviated name of journal. Year of publication; Volume number (Issue number): Page range.
Example: Jones S, Patel K, Smith J. The effects of exercise on cardiovascular health. J Cardiol. 2018; 25(2): 78-84.
In-text citation: Use superscript numbers to cite sources in the text, e.g., “Previous research has shown that^1,2,3…”.
Reference list citation: Format: Author(s). Title of paper. In: Editor(s). Title of the conference proceedings. Place of publication: Publisher; Year of publication. Page range.
Example: Johnson L, Smith J. The role of stem cells in tissue regeneration. In: Patel S, ed. Proceedings of the 5th International Conference on Regenerative Medicine. London: Academic Press; 2016. p. 68-73.
In-text citation: Use superscript numbers to cite sources in the text, e.g., “According to the World Health Organization^1…”.
Reference list citation: Format: Author(s). Title of webpage. Name of website. URL [Accessed Date].
Example: World Health Organization. Coronavirus disease (COVID-19) advice for the public. World Health Organization. https://www.who.int/emergencies/disease/novel-coronavirus-2019/advice-for-public [Accessed 3 March 2023].
In-text citation: Use superscript numbers to cite sources in the text, e.g., “According to the New York Times^1…”.
Reference list citation: Format: Author(s). Title of article. Name of newspaper. Year Month Day; Section (if any): Page number.
Example: Jones S. Study shows that sleep is essential for good health. The New York Times. 2022 Jan 12; Health: A8.
Author(s). Title of Book. Edition Number (if it is not the first edition). Publisher: Place of publication, Year of publication.
Example: Smith, J. Chemistry of Natural Products. 3rd ed.; CRC Press: Boca Raton, FL, 2015.
Journal articles:
Author(s). Article Title. Journal Name Year, Volume, Inclusive Pagination.
Example: Garcia, A. M.; Jones, B. A.; Smith, J. R. Selective Synthesis of Alkenes from Alkynes via Catalytic Hydrogenation. J. Am. Chem. Soc. 2019, 141, 10754-10759.
Research papers:
Author(s). Title of Paper. Journal Name Year, Volume, Inclusive Pagination.
Example: Brown, H. D.; Jackson, C. D.; Patel, S. D. A New Approach to Photovoltaic Solar Cells. J. Mater. Chem. 2018, 26, 134-142.
Author(s) (if available). Title of Webpage. Name of Website. URL (accessed Month Day, Year).
Example: National Institutes of Health. Heart Disease and Stroke. National Heart, Lung, and Blood Institute. https://www.nhlbi.nih.gov/health-topics/heart-disease-and-stroke (accessed April 7, 2023).
News articles:
Author(s). Title of Article. Name of News Publication. Date of Publication. URL (accessed Month Day, Year).
Example: Friedman, T. L. The World is Flat. New York Times. April 7, 2023. https://www.nytimes.com/2023/04/07/opinion/world-flat-globalization.html (accessed April 7, 2023).
In AMA Style Format, the citation for a book should include the following information, in this order:
- Title of book (in italics)
- Edition (if applicable)
- Place of publication
- Year of publication
Lodish H, Berk A, Zipursky SL, et al. Molecular Cell Biology. 4th ed. New York, NY: W. H. Freeman; 2000.
In AMA Style Format, the citation for a journal article should include the following information, in this order:
- Title of article
- Abbreviated title of journal (in italics)
- Year of publication; volume number(issue number):page numbers.
Chen H, Huang Y, Li Y, et al. Effects of mindfulness-based stress reduction on depression in adolescents and young adults: a systematic review and meta-analysis. JAMA Netw Open. 2020;3(6):e207081. doi:10.1001/jamanetworkopen.2020.7081
In AMA Style Format, the citation for a research paper should include the following information, in this order:
- Title of paper
- Name of journal or conference proceeding (in italics)
- Volume number(issue number):page numbers.
Bredenoord AL, Kroes HY, Cuppen E, Parker M, van Delden JJ. Disclosure of individual genetic data to research participants: the debate reconsidered. Trends Genet. 2011;27(2):41-47. doi:10.1016/j.tig.2010.11.004
In AMA Style Format, the citation for a website should include the following information, in this order:
- Title of web page or article
- Name of website (in italics)
- Date of publication or last update (if available)
- URL (website address)
- Date of access (month day, year)
Centers for Disease Control and Prevention. How to protect yourself and others. CDC. Published February 11, 2022. Accessed February 14, 2022. https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/prevention.html
In AMA Style Format, the citation for a news article should include the following information, in this order:
- Name of newspaper or news website (in italics)
- Date of publication
Gorman J. Scientists use stem cells from frogs to build first living robots. The New York Times. January 13, 2020. Accessed January 14, 2020. https://www.nytimes.com/2020/01/13/science/living-robots-xenobots.html
Bluebook Format
One author: Daniel J. Solove, The Future of Reputation: Gossip, Rumor, and Privacy on the Internet (Yale University Press 2007).
Two or more authors: Martha Nussbaum and Saul Levmore, eds., The Offensive Internet: Speech, Privacy, and Reputation (Harvard University Press 2010).
Journal article
One author: Daniel J. Solove, “A Taxonomy of Privacy,” University of Pennsylvania Law Review 154, no. 3 (January 2006): 477-560.
Two or more authors: Ethan Katsh and Andrea Schneider, “The Emergence of Online Dispute Resolution,” Journal of Dispute Resolution 2003, no. 1 (2003): 7-19.
One author: Daniel J. Solove, “A Taxonomy of Privacy,” GWU Law School Public Law Research Paper No. 113, 2005.
Two or more authors: Ethan Katsh and Andrea Schneider, “The Emergence of Online Dispute Resolution,” Cyberlaw Research Paper Series Paper No. 00-5, 2000.
WebsiteElectronic Frontier Foundation, “Surveillance Self-Defense,” accessed April 8, 2023, https://ssd.eff.org/.
News article
One author: Mark Sherman, “Court Deals Major Blow to Net Neutrality Rules,” ABC News, January 14, 2014, https://abcnews.go.com/Politics/wireStory/court-deals-major-blow-net-neutrality-rules-21586820.
Two or more authors: Siobhan Hughes and Brent Kendall, “AT&T Wins Approval to Buy Time Warner,” Wall Street Journal, June 12, 2018, https://www.wsj.com/articles/at-t-wins-approval-to-buy-time-warner-1528847249.
In-Text Citation: (Author’s last name Year of Publication: Page Number)
Example: (Smith 2010: 35)
Reference List Citation: Author’s last name First Initial. Title of Book. Edition. Place of publication: Publisher; Year of publication.
Example: Smith J. Biology: A Textbook. 2nd ed. New York: Oxford University Press; 2010.
Example: (Johnson 2014: 27)
Reference List Citation: Author’s last name First Initial. Title of Article. Abbreviated Title of Journal. Year of publication;Volume(Issue):Page Numbers.
Example: Johnson S. The role of dopamine in addiction. J Neurosci. 2014;34(8): 2262-2272.
Example: (Brown 2018: 10)
Reference List Citation: Author’s last name First Initial. Title of Paper. Paper presented at: Name of Conference; Date of Conference; Place of Conference.
Example: Brown R. The impact of social media on mental health. Paper presented at: Annual Meeting of the American Psychological Association; August 2018; San Francisco, CA.
Example: (World Health Organization 2020: para. 2)
Reference List Citation: Author’s last name First Initial. Title of Webpage. Name of Website. URL. Published date. Accessed date.
Example: World Health Organization. Coronavirus disease (COVID-19) pandemic. WHO website. https://www.who.int/emergencies/disease-coronavirus-2019. Updated August 17, 2020. Accessed September 5, 2021.
Example: (Smith 2019: para. 5)
Reference List Citation: Author’s last name First Initial. Title of Article. Title of Newspaper or Magazine. Year of publication; Month Day:Page Numbers.
Example: Smith K. New study finds link between exercise and mental health. The New York Times. 2019;May 20: A6.
Purpose of Research Paper Citation
The purpose of citing sources in a research paper is to give credit to the original authors and acknowledge their contribution to your work. By citing sources, you are also demonstrating the validity and reliability of your research by showing that you have consulted credible and authoritative sources. Citations help readers to locate the original sources that you have referenced and to verify the accuracy and credibility of your research. Additionally, citing sources is important for avoiding plagiarism, which is the act of presenting someone else’s work as your own. Proper citation also shows that you have conducted a thorough literature review and have used the existing research to inform your own work. Overall, citing sources is an essential aspect of academic writing and is necessary for building credibility, demonstrating research skills, and avoiding plagiarism.
Advantages of Research Paper Citation
There are several advantages of research paper citation, including:
- Giving credit: By citing the works of other researchers in your field, you are acknowledging their contribution and giving credit where it is due.
- Strengthening your argument: Citing relevant and reliable sources in your research paper can strengthen your argument and increase its credibility. It shows that you have done your due diligence and considered various perspectives before drawing your conclusions.
- Demonstrating familiarity with the literature : By citing various sources, you are demonstrating your familiarity with the existing literature in your field. This is important as it shows that you are well-informed about the topic and have done a thorough review of the available research.
- Providing a roadmap for further research: By citing relevant sources, you are providing a roadmap for further research on the topic. This can be helpful for future researchers who are interested in exploring the same or related issues.
- Building your own reputation: By citing the works of established researchers in your field, you can build your own reputation as a knowledgeable and informed scholar. This can be particularly helpful if you are early in your career and looking to establish yourself as an expert in your field.
About the author
Muhammad Hassan
Researcher, Academic Writer, Web developer
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Basic Principles of Citation
APA Style uses the author–date citation system , in which a brief in-text citation directs readers to a full reference list entry. The in-text citation appears within the body of the paper (or in a table, figure, footnote, or appendix) and briefly identifies the cited work by its author and date of publication. This enables readers to locate the corresponding entry in the alphabetical reference list at the end of the paper.
Each work cited must appear in the reference list, and each work in the reference list must be cited in the text (or in a table, figure, footnote, or appendix).
Both paraphrases and quotations require citations.
The following are guidelines to follow when writing in-text citations:
- Ensure that the spelling of author names and the publication dates in reference list entries match those in the corresponding in-text citations.
- Cite only works that you have read and ideas that you have incorporated into your writing. The works you cite may provide key background information, support or dispute your thesis, or offer critical definitions and data.
- Readers may find a long string of citations difficult to understand, especially if they are using assistive technology such as a screen reader; therefore, include only those citations needed to support your immediate point.
- Cite primary sources when possible, and cite secondary sources sparingly.
- Cite sources to document all facts and figures that you mention that are not common knowledge.
- To cite a specific part of a source , provide an author–date citation for the work plus information about the specific part.
- Even when sources cannot be retrieved (e.g., because they are personal communications ), still credit them in the text (however, avoid using online sources that are no longer recoverable).
Basic principles of citation are covered in the seventh edition APA Style manuals in the Publication Manual Sections 8.1 to 8.36 and the Concise Guide Sections 8.1 to 8.34
Related handouts
- In-Text Citation Checklist (PDF, 227KB)
- Six Steps to Proper Citation (PDF, 112KB)
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This blog post describes key tasks in writing an effective literature review and provides strategies for approaching those tasks.
How to cite a work with a nonrecoverable source
In most cases, nonrecoverable sources such as personal emails, nonarchived social media livestreams (or deleted and unarchived social media posts), classroom lectures, unrecorded webinars or presentations, and intranet sources should be cited only in the text as personal communications.
The “outdated sources” myth
The “outdated sources” myth is that sources must have been published recently, such as the last 5 to 10 years. There is no timeliness requirement in APA Style.
From COVID-19 to demands for social justice: Citing contemporary sources for current events
The guidance in the seventh edition of the Publication Manual makes the process of citing contemporary sources found online easier than ever before.
Citing classical and religious works
A classical or religious work is cited as either a book or a webpage, depending on what version of the source you are using. This post includes details and examples.
Academic Writer—APA’s essential teaching resource for higher education instructors
Academic Writer’s advanced authoring technology and digital learning tools allow students to take a hands-on approach to learning the scholarly research and writing process.
APA Style webinar on citing works in text
Attend the webinar, “Citing Works in Text Using Seventh Edition APA Style,” on July 14, 2020, to learn the keys to accurately and consistently citing sources in APA Style.
University Library
Start your research.
- Research Process
- Find Background Info
- Find Sources through the Library
- Evaluate Your Info
- Cite Your Sources
- Evaluate, Write & Cite
- is the right thing to do to give credit to those who had the idea
- shows that you have read and understand what experts have had to say about your topic
- helps people find the sources that you used in case they want to read more about the topic
- provides evidence for your arguments
- is professional and standard practice for students and scholars
What is a Citation?
A citation identifies for the reader the original source for an idea, information, or image that is referred to in a work.
- In the body of a paper, the in-text citation acknowledges the source of information used.
- At the end of a paper, the citations are compiled on a References or Works Cited list. A basic citation includes the author, title, and publication information of the source.
From: Lemieux Library, University of Seattle
Why Should You Cite?
Quoting Are you quoting two or more consecutive words from a source? Then the original source should be cited and the words or phrase placed in quotes.
Paraphrasing If an idea or information comes from another source, even if you put it in your own words , you still need to credit the source. General vs. Unfamiliar Knowledge You do not need to cite material which is accepted common knowledge. If in doubt whether your information is common knowledge or not, cite it. Formats We usually think of books and articles. However, if you use material from web sites, films, music, graphs, tables, etc. you'll also need to cite these as well.
Plagiarism is presenting the words or ideas of someone else as your own without proper acknowledgment of the source. When you work on a research paper and use supporting material from works by others, it's okay to quote people and use their ideas, but you do need to correctly credit them. Even when you summarize or paraphrase information found in books, articles, or Web pages, you must acknowledge the original author.
Citation Style Help
Helpful links:
- MLA , Works Cited : A Quick Guide (a template of core elements)
- CSE (Council of Science Editors)
For additional writing resources specific to styles listed here visit the Purdue OWL Writing Lab
Citation and Bibliography Resources
- How to Write an Annotated Bibliography
- << Previous: Evaluate Your Info
- Next: Evaluate, Write & Cite >>
Creative Commons Attribution 3.0 License except where otherwise noted.
Land Acknowledgement
The land on which we gather is the unceded territory of the Awaswas-speaking Uypi Tribe. The Amah Mutsun Tribal Band, comprised of the descendants of indigenous people taken to missions Santa Cruz and San Juan Bautista during Spanish colonization of the Central Coast, is today working hard to restore traditional stewardship practices on these lands and heal from historical trauma.
The land acknowledgement used at UC Santa Cruz was developed in partnership with the Amah Mutsun Tribal Band Chairman and the Amah Mutsun Relearning Program at the UCSC Arboretum .
- Research Guides
- Schlesinger Library on the History of Women in America
- Archival Materials
- Additional Resources
- Research Tips
- Ask a Schlesinger Librarian
Fundamentals of APA
American Psychological Association (APA) style includes parenthetical in-text citations and a reference list .
APA uses parenthetical citations as its form of in-text citation. Provide a parenthetical citation before the period directly following the information you are citing. These citations should correspond to a more detailed citation in the reference list but only need to specify a page number if directly quoting or borrowing from the source material. The essential elements for this in-text citation are the author's last name and the date for the specific publications. The last name may be omitted if the sentence states or makes clear the source material.
APA uses a reference list , an alphabetized list of sources following the end of the book or paper, for its complete list of sources referenced. This list should be titled "References" in bold and alphabetized by the first item in the citation, which, in most cases, is the author's last name. Each reference from this list must be cited in your paper and vice versa.
Basic Format
Author Last Name, Author First Initial. (Year of publication). Title . Publisher Name.
Print Articles
Author Last Name, Author First Initial, & Author Last Name, Author First Initial. (Year). Article Title. Periodical Title , volume number(issue number), pages.
Electronic Articles
Author Last Name, Author First Initial. (Year). Article Title. Periodical Title , volume number(issue number), pages. doi or static url.
Physical Images/Artwork
Artist Last Name, Artist First Initial. (Year). Artwork Title [medium]. Host Institution Name, City, State, Country. URL of institution.
Electronic Images/Artwork
Artist Last Name, Artist First Initial. (Year). Image Title [medium]. Source Title. URL of image.
In-text Citation Examples
Standard case :
"Lorem ipsum dolor sit amet , consectetur adipiscing elit" (Last name, 2000, p.10).
If the author is not available , the title of the source may be used:
Lorem ipsum dolor sit amet , consectetur adipiscing elit ("Source title", 2000, pp.10-11).
If multiple authors cited have the same last name , use the author's first initial along with their last name:
"Lorem ipsum dolor sit amet , consectetur adipiscing elit" (E. Bronte, 1847, p.10).
Lorem ipsum dolor sit amet , consectetur adipiscing elit (C. Bronte, 1847, p.10).
Full Citation Examples for the Reference List
Archival material :
Child, J. (1974). Journal, 1974 . [Unpublished journal]. Papers of Julia Child, 1925-1993(MC 644, item 4). Schlesinger Library on the History of Women in America, Radcliffe Institute, https://id.lib.harvard.edu/ead/c/ sch00222c00006 /catalog .
Child, P. (1967). Julia Child at the White House [Photograph]. Schlesinger Library on the History of Women in America, Radcliffe Institute, https://id.lib.harvard.edu/images/olvwork539731/urn-3:RAD.SCHL:4510469/catalog.
Beck, S., Bertholle, L., & Child, J. (1961). Mastering the art of French cooking. Knopf.
Child, J. & Child, P. (1968). The French chef cookbook . Alfred A. Knopf .
Journal article :
Muneal, M. (2011). Studies in Popular Culture , 34(1), 152–154. www.jstor.org/stable/23416357.
Nussbaum, D. (2005). "In Julia Child's Kitchen, October 5 1998". Gastronomica , 5(3), 29-38. doi: 10.1525/gfc.2005.5.3.29.
- APA Style website The online version of the APA Style Manual, this website offers to help with the technical elements of formatting in APA as well as writing and citing your work.
- Purdue OWL APA Guide The Purdue Online Writing Lab (OWL) is one of the most complete citation guides available online. The APA Guide explains how to format a paper in APA and breaks down citations by type with numerous examples.
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- Next: Chicago >>
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- Last Updated: Jan 19, 2024 9:31 AM
- URL: https://guides.library.harvard.edu/schlesinger/citation_guide
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Home / Guides / Citation Guides / How to Cite Sources
How to Cite Sources
Here is a complete list for how to cite sources. Most of these guides present citation guidance and examples in MLA, APA, and Chicago.
If you’re looking for general information on MLA or APA citations , the EasyBib Writing Center was designed for you! It has articles on what’s needed in an MLA in-text citation , how to format an APA paper, what an MLA annotated bibliography is, making an MLA works cited page, and much more!
MLA Format Citation Examples
The Modern Language Association created the MLA Style, currently in its 9th edition, to provide researchers with guidelines for writing and documenting scholarly borrowings. Most often used in the humanities, MLA style (or MLA format ) has been adopted and used by numerous other disciplines, in multiple parts of the world.
MLA provides standard rules to follow so that most research papers are formatted in a similar manner. This makes it easier for readers to comprehend the information. The MLA in-text citation guidelines, MLA works cited standards, and MLA annotated bibliography instructions provide scholars with the information they need to properly cite sources in their research papers, articles, and assignments.
- Book Chapter
- Conference Paper
- Documentary
- Encyclopedia
- Google Images
- Kindle Book
- Memorial Inscription
- Museum Exhibit
- Painting or Artwork
- PowerPoint Presentation
- Sheet Music
- Thesis or Dissertation
- YouTube Video
APA Format Citation Examples
The American Psychological Association created the APA citation style in 1929 as a way to help psychologists, anthropologists, and even business managers establish one common way to cite sources and present content.
APA is used when citing sources for academic articles such as journals, and is intended to help readers better comprehend content, and to avoid language bias wherever possible. The APA style (or APA format ) is now in its 7th edition, and provides citation style guides for virtually any type of resource.
Chicago Style Citation Examples
The Chicago/Turabian style of citing sources is generally used when citing sources for humanities papers, and is best known for its requirement that writers place bibliographic citations at the bottom of a page (in Chicago-format footnotes ) or at the end of a paper (endnotes).
The Turabian and Chicago citation styles are almost identical, but the Turabian style is geared towards student published papers such as theses and dissertations, while the Chicago style provides guidelines for all types of publications. This is why you’ll commonly see Chicago style and Turabian style presented together. The Chicago Manual of Style is currently in its 17th edition, and Turabian’s A Manual for Writers of Research Papers, Theses, and Dissertations is in its 8th edition.
Citing Specific Sources or Events
- Declaration of Independence
- Gettysburg Address
- Martin Luther King Jr. Speech
- President Obama’s Farewell Address
- President Trump’s Inauguration Speech
- White House Press Briefing
Additional FAQs
- Citing Archived Contributors
- Citing a Blog
- Citing a Book Chapter
- Citing a Source in a Foreign Language
- Citing an Image
- Citing a Song
- Citing Special Contributors
- Citing a Translated Article
- Citing a Tweet
6 Interesting Citation Facts
The world of citations may seem cut and dry, but there’s more to them than just specific capitalization rules, MLA in-text citations , and other formatting specifications. Citations have been helping researches document their sources for hundreds of years, and are a great way to learn more about a particular subject area.
Ever wonder what sets all the different styles apart, or how they came to be in the first place? Read on for some interesting facts about citations!
1. There are Over 7,000 Different Citation Styles
You may be familiar with MLA and APA citation styles, but there are actually thousands of citation styles used for all different academic disciplines all across the world. Deciding which one to use can be difficult, so be sure to ask you instructor which one you should be using for your next paper.
2. Some Citation Styles are Named After People
While a majority of citation styles are named for the specific organizations that publish them (i.e. APA is published by the American Psychological Association, and MLA format is named for the Modern Language Association), some are actually named after individuals. The most well-known example of this is perhaps Turabian style, named for Kate L. Turabian, an American educator and writer. She developed this style as a condensed version of the Chicago Manual of Style in order to present a more concise set of rules to students.
3. There are Some Really Specific and Uniquely Named Citation Styles
How specific can citation styles get? The answer is very. For example, the “Flavour and Fragrance Journal” style is based on a bimonthly, peer-reviewed scientific journal published since 1985 by John Wiley & Sons. It publishes original research articles, reviews and special reports on all aspects of flavor and fragrance. Another example is “Nordic Pulp and Paper Research,” a style used by an international scientific magazine covering science and technology for the areas of wood or bio-mass constituents.
4. More citations were created on EasyBib.com in the first quarter of 2018 than there are people in California.
The US Census Bureau estimates that approximately 39.5 million people live in the state of California. Meanwhile, about 43 million citations were made on EasyBib from January to March of 2018. That’s a lot of citations.
5. “Citations” is a Word With a Long History
The word “citations” can be traced back literally thousands of years to the Latin word “citare” meaning “to summon, urge, call; put in sudden motion, call forward; rouse, excite.” The word then took on its more modern meaning and relevance to writing papers in the 1600s, where it became known as the “act of citing or quoting a passage from a book, etc.”
6. Citation Styles are Always Changing
The concept of citations always stays the same. It is a means of preventing plagiarism and demonstrating where you relied on outside sources. The specific style rules, however, can and do change regularly. For example, in 2018 alone, 46 new citation styles were introduced , and 106 updates were made to exiting styles. At EasyBib, we are always on the lookout for ways to improve our styles and opportunities to add new ones to our list.
Why Citations Matter
Here are the ways accurate citations can help your students achieve academic success, and how you can answer the dreaded question, “why should I cite my sources?”
They Give Credit to the Right People
Citing their sources makes sure that the reader can differentiate the student’s original thoughts from those of other researchers. Not only does this make sure that the sources they use receive proper credit for their work, it ensures that the student receives deserved recognition for their unique contributions to the topic. Whether the student is citing in MLA format , APA format , or any other style, citations serve as a natural way to place a student’s work in the broader context of the subject area, and serve as an easy way to gauge their commitment to the project.
They Provide Hard Evidence of Ideas
Having many citations from a wide variety of sources related to their idea means that the student is working on a well-researched and respected subject. Citing sources that back up their claim creates room for fact-checking and further research . And, if they can cite a few sources that have the converse opinion or idea, and then demonstrate to the reader why they believe that that viewpoint is wrong by again citing credible sources, the student is well on their way to winning over the reader and cementing their point of view.
They Promote Originality and Prevent Plagiarism
The point of research projects is not to regurgitate information that can already be found elsewhere. We have Google for that! What the student’s project should aim to do is promote an original idea or a spin on an existing idea, and use reliable sources to promote that idea. Copying or directly referencing a source without proper citation can lead to not only a poor grade, but accusations of academic dishonesty. By citing their sources regularly and accurately, students can easily avoid the trap of plagiarism , and promote further research on their topic.
They Create Better Researchers
By researching sources to back up and promote their ideas, students are becoming better researchers without even knowing it! Each time a new source is read or researched, the student is becoming more engaged with the project and is developing a deeper understanding of the subject area. Proper citations demonstrate a breadth of the student’s reading and dedication to the project itself. By creating citations, students are compelled to make connections between their sources and discern research patterns. Each time they complete this process, they are helping themselves become better researchers and writers overall.
When is the Right Time to Start Making Citations?
Make in-text/parenthetical citations as you need them.
As you are writing your paper, be sure to include references within the text that correspond with references in a works cited or bibliography. These are usually called in-text citations or parenthetical citations in MLA and APA formats. The most effective time to complete these is directly after you have made your reference to another source. For instance, after writing the line from Charles Dickens’ A Tale of Two Cities : “It was the best of times, it was the worst of times…,” you would include a citation like this (depending on your chosen citation style):
(Dickens 11).
This signals to the reader that you have referenced an outside source. What’s great about this system is that the in-text citations serve as a natural list for all of the citations you have made in your paper, which will make completing the works cited page a whole lot easier. After you are done writing, all that will be left for you to do is scan your paper for these references, and then build a works cited page that includes a citation for each one.
Need help creating an MLA works cited page ? Try the MLA format generator on EasyBib.com! We also have a guide on how to format an APA reference page .
2. Understand the General Formatting Rules of Your Citation Style Before You Start Writing
While reading up on paper formatting may not sound exciting, being aware of how your paper should look early on in the paper writing process is super important. Citation styles can dictate more than just the appearance of the citations themselves, but rather can impact the layout of your paper as a whole, with specific guidelines concerning margin width, title treatment, and even font size and spacing. Knowing how to organize your paper before you start writing will ensure that you do not receive a low grade for something as trivial as forgetting a hanging indent.
Don’t know where to start? Here’s a formatting guide on APA format .
3. Double-check All of Your Outside Sources for Relevance and Trustworthiness First
Collecting outside sources that support your research and specific topic is a critical step in writing an effective paper. But before you run to the library and grab the first 20 books you can lay your hands on, keep in mind that selecting a source to include in your paper should not be taken lightly. Before you proceed with using it to backup your ideas, run a quick Internet search for it and see if other scholars in your field have written about it as well. Check to see if there are book reviews about it or peer accolades. If you spot something that seems off to you, you may want to consider leaving it out of your work. Doing this before your start making citations can save you a ton of time in the long run.
Finished with your paper? It may be time to run it through a grammar and plagiarism checker , like the one offered by EasyBib Plus. If you’re just looking to brush up on the basics, our grammar guides are ready anytime you are.
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Citation Basics
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Plagiarism Basics
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Research Skills Tutorial
- Turning A Topic Into A Research Question
- Getting Background Information About Your Topic
- Portfolio Activity 1
- Types of Information Sources
- Scholarly, Popular and Trade Information Sources
- Primary, Secondary and Tertiary Information Sources
- Current and Retrospective Information Sources
- Information Sources for Different Audiences and Purposes
- Portfolio Activity 2
- Library Databases vs. the Web
- Creating a Concept Chart
- Boolean Operators
- Refining Results by Date, Peer Review and Document Type
- Advanced Searching
- Advanced Searching with Descriptors
- Descriptor Chaining
- Citation Chaining (or Reference Mining)
- Searching Outside the SUNY Empire Library
- Searching Google
- Portfolio Activity 3
- Understanding Search Results
- Saving Search Results
- Portfolio Activity 4
- Credible Sources
- What Does the Information Source Tell You About Itself?
- Reliability
- Some More About Validity
- Portfolio Activity 5
- What Is Citing?
- What Is a Citation?
- Citation Styles
- Citing Tools and Tips
- Practice Activity 6
- Practice Activity 7 - Final Project
What Is A Citation?
When to cite.
A citation is a reference to the source of information used in your research. Any time you directly quote, paraphrase or summarize the essential elements of someone else's idea in your work, an in-text citation should follow. An in-text citation is a brief notation within the text of your paper or presentation which refers the reader to a fuller notation, or end-of-paper citation , that provides all necessary details about that source of information. Direct quotations should be surrounded by quotations marks and are generally used when the idea you want to capture is best expressed by the source. Paraphrasing and summarizing involve rewording an essential idea from someone else's work, usually to either condense the point or to make it better fit your writing style. You do not have to cite your own ideas, unless they have been published. And you do not have to cite common knowledge , or information that most people in your audience would know without having to look it up.
In-Text Citations
In-text citations alert the reader to an idea from an outside source.
Parenthetical Notes
In MLA and APA styles, in-text citations usually appear as parenthetical notes (sometimes called parenthetical documentation ). They are called parenthetical notes because brief information about the source, usually the author's name, year of publication, and page number, is enclosed in parentheses as follows:
MLA style: (Smith 263)
APA style: (Smith, 2013, p. 263)
Parenthetical notes are inserted into the text of the paper at the end of a sentence or paragraph:>
In MLA and APA styles, in-text citations are associated with end-of-paper citations that provide full details about an information source. Note: Different source types and situations require different information within the parentheses. Refer to a style guide for the style you are using for details.
Note Numbers
In Chicago and CSE styles, in-text citations usually appear as superscript numerals, or note numbers , as follows:
These note numbers are associated with full citations that can appear as footnotes (bottom of page), endnotes (end of chapter or paper), or lists of cited references at the end of the paper.
End-of-Paper Citations
End-of-paper citations, as well as footnotes and endnotes, include full details about a source of information. Citations contain different pieces of identifying information about your source depending on what type of source it is. In academic research, your sources will most commonly be articles from scholarly journals, and the citation for an article typically includes:
- article title
- publication information (journal title, date, volume, issue, pages, etc.)
- DOI (digital object identifier).
- URL of the information source itself
- URL of the journal that published the article
There are many other types of sources you might use, including books, book chapters, films, song lyrics, musical scores, interviews, e-mails, blog entries, art works, lectures, websites and more. To determine which details are required for a citation for a particular source type, find that source type within the style guide for the citation style you are using. At the end of your research paper, full citations should be listed in order according to the citation style you are using:
- In MLA style, this list is called a W orks Cited page.
- In APA style, it is called a References page.
- In CSE style, it is called a C ited References page.
- And, in Chicago style, there may be both a Notes page and a Bibliography page.
Citations In Library Databases
When you search the library's databases for articles or e-books, the list of search results you see is actually a list of full citations. Instead of being formatted according to MLA, APA, CSE, or Chicago style, these citations are formatted according to the database vendor's style. It is up to you to take the source information you find in a library database (or elsewhere) and format it according to the citation style you are using.
Accessibility Note
Please note: If you need to request accommodations with content linked to on this guide, on the basis of a disability, please contact Accessibility Resources and Services by emailing them . Requests for accommodations should be submitted as early as possible to allow for sufficient planning. If you have questions, please visit the Accessibility Resources and Services website .
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What Are Citations?
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Last updated April 2018
Why Are Citations Important?
What Does a Citation Look Like?
A citation is typically found in two places:, in-text citations.
Reference Lists/Bibliographies
Authors use in-text citations after they have paraphrased, summarized, quoted or otherwise used another author’s work. Examples of in-text citations include parentheses, footnotes or endnotes.
Reference Lists
A reference list includes information on all of the sources an author used. It can also be called a bibliography or works cited. Each item in the list includes information such as title, author and publication date. A reference list is usually listed at the end of a paper with the exception of footnotes which are at the bottom of each page.
Reading a Citation
Knowing how to read a citation in a reference list or bibliography will help you identify different types of sources that an author used in their research. You can use a reference list from another researcher to find related sources on your topic, or to find counterpoints to your research. Let’s look at citations for three common types of sources:
Reading Citations: Article Citations
A citation for an article can include:.
Why is this important?
The journal title is often what is listed in library catalogs.
How do you know if it is an article?
The presence of two titles (article and journal) are the biggest clue that this is an article. Volume Number and Issue Number are also big clues as books will not have those pieces in a citation.
Reading Citations: Book Citations
A citation for a book can include:.
Year, edition, format, and publisher help distinguish between versions.
How do you know if it is a book?
Reading Citations: Website Citations
A citation for a website can include:.
To find and verify a website, you need to know the URL. Since websites change frequently, knowing the date accessed is similar to knowing a publication date.
How do you know if it is a website?
The date accessed and the presence of a URL are the biggest clues that you are looking at a citation for a website.
Citation Styles
Different disciplines cite in different ways which means that there are many different citation styles.
Your professor or department will tell you what style to use.
Style guides, manuals and handbooks are available both in print and online.
Citation Guides at the University Libraries
Examples of Citation Styles: Article Citations
Examples of Citation Styles: Book Citations
Knowledge Check
What are citations review, you are now able to:, do you have questions.
Design and content by the University of Minnesota Libraries Instructional Design Team: Lindsay Matts-Benson and Andrew Palahniuk. For accessibility accommodations, or to receive this information in alternative formats, contact [email protected] or 612-624-0365. The content in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License . Some images are copyright.
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How to Cite a Research Paper
Last Updated: March 29, 2024 Fact Checked
This article was reviewed by Gerald Posner and by wikiHow staff writer, Jennifer Mueller, JD . Gerald Posner is an Author & Journalist based in Miami, Florida. With over 35 years of experience, he specializes in investigative journalism, nonfiction books, and editorials. He holds a law degree from UC College of the Law, San Francisco, and a BA in Political Science from the University of California-Berkeley. He’s the author of thirteen books, including several New York Times bestsellers, the winner of the Florida Book Award for General Nonfiction, and has been a finalist for the Pulitzer Prize in History. He was also shortlisted for the Best Business Book of 2020 by the Society for Advancing Business Editing and Writing. There are 8 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 416,376 times.
When writing a paper for a research project, you may need to cite a research paper you used as a reference. The basic information included in your citation will be the same across all styles. However, the format in which that information is presented is somewhat different depending on whether you're using American Psychological Association (APA), Modern Language Association (MLA), Chicago, or American Medical Association (AMA) style.
Referencing a Research Paper
- In APA style, cite the paper: Last Name, First Initial. (Year). Title. Publisher.
- In Chicago style, cite the paper: Last Name, First Name. “Title.” Publisher, Year.
- In MLA style, cite the paper: Last Name, First Name. “Title.” Publisher. Year.
Citation Help
- For example: "Kringle, K., & Frost, J."
- For example: "Kringle, K., & Frost, J. (2012)."
- If the date, or any other information, are not available, use the guide at https://blog.apastyle.org/apastyle/2012/05/missing-pieces.html .
- For example: "Kringle, K., & Frost, J. (2012). Red noses, warm hearts: The glowing phenomenon among North Pole reindeer."
- If you found the research paper in a database maintained by a university, corporation, or other organization, include any index number assigned to the paper in parentheses after the title. For example: "Kringle, K., & Frost, J. (2012). Red noses, warm hearts: The glowing phenomenon among North Pole reindeer. (Report No. 1234)."
- For example: "Kringle, K., & Frost, J. (2012). Red noses, warm hearts: The glowing phenomenon among North Pole reindeer. (Report No. 1234). Retrieved from Alaska University Library Archives, December 24, 2017."
- For example: "(Kringle & Frost, 2012)."
- If there was no date on the research paper, use the abbreviation n.d. : "(Kringle & Frost, n.d.)."
- For example: "Kringle, Kris, and Jack Frost."
- For example: "Kringle, Kris, and Jack Frost. "Red Noses, Warm Hearts: The Glowing Phenomenon among North Pole Reindeer." Master's thesis."
- For example: "Kringle, Kris, and Jack Frost. "Red Noses, Warm Hearts: The Glowing Phenomenon among North Pole Reindeer." Master's thesis, Alaska University, 2012."
- For example: "Kringle, Kris, and Jack Frost. "Red Noses, Warm Hearts: The Glowing Phenomenon among North Pole Reindeer." Master's thesis, Alaska University, 2012. Accessed at https://www.northpolemedical.com/raising_rudolf."
- Footnotes are essentially the same as the full citation, although the first and last names of the authors aren't inverted.
- For parenthetical citations, Chicago uses the Author-Date format. For example: "(Kringle and Frost 2012)."
- For example: "Kringle, Kris, and Frost, Jack."
- For example: "Kringle, Kris, and Frost, Jack. "Red Noses, Warm Hearts: The Glowing Phenomenon Among North Pole Reindeer.""
- For example, suppose you found the paper in a collection of paper housed in university archives. Your citation might be: "Kringle, Kris, and Frost, Jack. "Red Noses, Warm Hearts: The Glowing Phenomenon Among North Pole Reindeer." Master's Theses 2000-2010. University of Alaska Library Archives. Accessed December 24, 2017."
- For example: "(Kringle & Frost, p. 33)."
- For example: "Kringle K, Frost J."
- For example: "Kringle K, Frost J. Red noses, warm hearts: The glowing phenomenon among North Pole reindeer."
- For example: "Kringle K, Frost J. Red noses, warm hearts: The glowing phenomenon among North Pole reindeer. Nat Med. 2012; 18(9): 1429-1433."
- For example, if you're citing a paper presented at a conference, you'd write: "Kringle K, Frost J. Red noses, warm hearts: The glowing phenomenon among North Pole reindeer. Oral presentation at Arctic Health Association Annual Summit; December, 2017; Nome, Alaska."
- To cite a paper you read online, you'd write: "Kringle K, Frost J. Red noses, warm hearts: The glowing phenomenon among North Pole reindeer. https://www.northpolemedical.com/raising_rudolf"
- For example: "According to Kringle and Frost, these red noses indicate a subspecies of reindeer native to Alaska and Canada that have migrated to the North Pole and mingled with North Pole reindeer. 1 "
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- If you used a manual as a source in your research paper, you'll need to learn how to cite the manual also. Thanks Helpful 0 Not Helpful 0
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- ↑ https://askus.library.wwu.edu/faq/116659
- ↑ https://guides.libraries.psu.edu/apaquickguide/intext
- ↑ https://owl.purdue.edu/owl/research_and_citation/chicago_manual_17th_edition/cmos_formatting_and_style_guide/general_format.html
- ↑ https://libanswers.snhu.edu/faq/48009
- ↑ https://www.chicagomanualofstyle.org/tools_citationguide/citation-guide-2.html
- ↑ https://owl.purdue.edu/owl/research_and_citation/mla_style/mla_formatting_and_style_guide/mla_in_text_citations_the_basics.html
- ↑ https://morningside.libguides.com/MLA8/location
- ↑ https://owl.purdue.edu/owl/research_and_citation/ama_style/index.html
About This Article
To cite a paper APA style, start with the author's last name and first initial, and the year of publication. Then, list the title of the paper, where you found it, and the date that you accessed it. In a paper, use a parenthetical reference with the last name of the author and the publication year. For an MLA citation, list the author's last name and then first name and the title of the paper in quotations. Include where you accessed the paper and the date you retrieved it. In your paper, use a parenthetical reference with the author's last name and the page number. Keep reading for tips on Chicago and AMA citations and exceptions to the citation rules! Did this summary help you? Yes No
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A Beginner’s Guide to Citations, References and Bibliography in Research Papers
As an academician, terms such as citations, references and bibliography might be a part of almost every work-related conversation in your daily life. However, many researchers, especially during the early stages of their academic career, may find it hard to differentiate between citations, references and bibliography in research papers and often find it confusing to implement their usage. If you are amongst them, this article will provide you with some respite. Let us start by first understanding the individual terms better.
Citation in research papers: A citation appears in the main text of the paper. It is a way of giving credit to the information that you have specifically mentioned in your research paper by leading the reader to the original source of information. You will need to use citation in research papers whenever you are using information to elaborate a particular concept in the paper, either in the introduction or discussion sections or as a way to support your research findings in the results section.
Reference in research papers: A reference is a detailed description of the source of information that you want to give credit to via a citation. The references in research papers are usually in the form of a list at the end of the paper. The essential difference between citations and references is that citations lead a reader to the source of information, while references provide the reader with detailed information regarding that particular source.
Bibliography in research papers:
A bibliography in research paper is a list of sources that appears at the end of a research paper or an article, and contains information that may or may not be directly mentioned in the research paper. The difference between reference and bibliography in research is that an individual source in the list of references can be linked to an in-text citation, while an individual source in the bibliography may not necessarily be linked to an in-text citation.
It’s understandable how these terms may often be used interchangeably as they are serve the same purpose – namely to give intellectual and creative credit to an original idea that is elaborated in depth in a research paper. One of the easiest ways to understand when to use an in-text citation in research papers, is to check whether the information is an ongoing work of research or if it has been proven to be a ‘fact’ through reproducibility. If the information is a proven fact, you need not specifically add the original source to the list of references but can instead choose to mention it in your bibliography. For instance, if you use a statement such as “The effects of global warming and climate changes on the deterioration of environment have been described in depth”, you need not use an in-text citation, but can choose to mention key sources in the bibliography section. An example of a citation in a research paper would be if you intend to elaborate on the impact of climate change in a particular population and/or a specific geographical location. In this case, you will need to add an in-text citation and mention the correct source in the list of references.
Citations | References | Bibliography | |
Purpose | To lead a reader toward a source of information included in the text | To elaborate on of a particular source of information cited in the research paper | To provide a list of all relevant sources of information on the research topic
|
Placement | In the main text | At the end of the text; necessarily linked to an in-text citation | At the end of the text; not necessarily linked to an in-text citation
|
Information | Minimal; denoting only the essential components of the source, such as numbering, names of the first and last authors, etc.
| Descriptive; gives complete details about a particular source that can be used to find and read the original paper if needed | Descriptive; gives all the information regarding a particular source for those who want to refer to it |
Now that you have understood the basic similarities and differences in these terms, you should also know that every journal follows a particular style and format for these elements. So when working out how to write citations and add references in research papers, be mindful of using the preferred style of your target journal before you submit your research document.
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Why Are Citations Important?
Citations are for transparency and access. Academic papers are conversations between multiple authors and responsible scholarship dictates that we properly credit scholars with their work when it is mentioned.
In addition to proving that you've done your due diligence as an academic, citations let readers know what you've read and where they can access a source you've used.
APA Style (American Psychological Association)
Used primarily in Education, Behavioral Sciences, and Social Sciences.
- This style supports disciplines that emphasizes the date in publication. In APA Style, the date directly follows the author's name.
- Uses parenthetical in-text citations. Sources are compiled on a "References" page.
Chicago (also known as Turabian) Citation Style
Notes and bibliography systems.
- Used in some Humanities disciplines (including History, Literature, and the Arts).
- This system can accommodate a variety of source types that are more difficult to format in the author-date system.
- Uses footnotes for in-text citations. Sources are compiled on a "Bibliography" page.
Author-date systems
- Used in the Sciences and some Social Sciences disciplines.
- This systems looks and functions very similarly to APA Style.
- Utilizes parenthetical in-text citations. Sources are compiled on a "References" or "Literature Cited" page.
MLA Style (Modern Language Association)
- Humanities research emphasizes authorship. In MLA style citations, the author is most important data point.
- Uses parenthetical in-text citations. Sources are compiled on a "Works Cited" page.
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Note: The APA Publication Manual, 7 th Edition specifies different formatting conventions for student and professional papers (i.e., papers written for credit in a course and papers intended for scholarly publication). These differences mostly extend to the title page and running head. Crucially, citation practices do not differ between the two styles of paper.
However, for your convenience, we have provided two versions of our APA 7 sample paper below: one in student style and one in professional style.
Note: For accessibility purposes, we have used "Track Changes" to make comments along the margins of these samples. Those authored by [AF] denote explanations of formatting and [AWC] denote directions for writing and citing in APA 7.
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- The Basics of In-Text Citation | APA & MLA Examples
The Basics of In-Text Citation | APA & MLA Examples
Published on March 14, 2022 by Jack Caulfield . Revised on February 28, 2024.
An in-text citation is a short acknowledgement you include whenever you quote or take information from a source in academic writing. It points the reader to the source so they can see where you got your information.
In-text citations most commonly take the form of short parenthetical statements indicating the author and publication year of the source, as well as the page number if relevant.
We also offer a free citation generator and in-depth guides to the main citation styles.
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Table of contents
What are in-text citations for, when do you need an in-text citation, types of in-text citation, frequently asked questions about in-text citations.
The point of an in-text citation is to show your reader where your information comes from. Including citations:
- Avoids plagiarism by acknowledging the original author’s contribution
- Allows readers to verify your claims and do follow-up research
- Shows you are engaging with the literature of your field
Academic writing is seen as an ongoing conversation among scholars, both within and between fields of study. Showing exactly how your own research draws on and interacts with existing sources is essential to keeping this conversation going.
Prevent plagiarism. Run a free check.
An in-text citation should be included whenever you quote or paraphrase a source in your text.
Quoting means including the original author’s words directly in your text, usually introduced by a signal phrase . Quotes should always be cited (and indicated with quotation marks), and you should include a page number indicating where in the source the quote can be found.
Paraphrasing means putting information from a source into your own words. In-text citations are just as important here as with quotes, to avoid the impression you’re taking credit for someone else’s ideas. Include page numbers where possible, to show where the information can be found.
However, to avoid over-citation, bear in mind that some information is considered common knowledge and doesn’t need to be cited. For example, you don’t need a citation to prove that Paris is the capital city of France, and including one would be distracting.
Different types of in-text citation are used in different citation styles . They always direct the reader to a reference list giving more complete information on each source.
Author-date citations (used in APA , Harvard , and Chicago author-date ) include the author’s last name, the year of publication, and a page number when available. Author-page citations (used in MLA ) are the same except that the year is not included.
Both types are divided into parenthetical and narrative citations. In a parenthetical citation , the author’s name appears in parentheses along with the rest of the information. In a narrative citation , the author’s name appears as part of your sentence, not in parentheses.
Parenthetical citation | Narrative citation | |
---|---|---|
Author-date (APA) | The treatment proved highly effective (Smith, 2018, p. 11). | Smith states that the treatment was highly effective (2018, p. 11). |
Author-page (MLA) | The treatment proved highly effective (Smith 11). | Smith states that the treatment was highly effective (11). |
Note: Footnote citations like those used in Chicago notes and bibliography are sometimes also referred to as in-text citations, but the citation itself appears in a note separate from the text.
An in-text citation is an acknowledgement you include in your text whenever you quote or paraphrase a source. It usually gives the author’s last name, the year of publication, and the page number of the relevant text. In-text citations allow the reader to look up the full source information in your reference list and see your sources for themselves.
At college level, you must properly cite your sources in all essays , research papers , and other academic texts (except exams and in-class exercises).
Add a citation whenever you quote , paraphrase , or summarize information or ideas from a source. You should also give full source details in a bibliography or reference list at the end of your text.
The exact format of your citations depends on which citation style you are instructed to use. The most common styles are APA , MLA , and Chicago .
Check if your university or course guidelines specify which citation style to use. If the choice is left up to you, consider which style is most commonly used in your field.
- APA Style is the most popular citation style, widely used in the social and behavioral sciences.
- MLA style is the second most popular, used mainly in the humanities.
- Chicago notes and bibliography style is also popular in the humanities, especially history.
- Chicago author-date style tends to be used in the sciences.
Other more specialized styles exist for certain fields, such as Bluebook and OSCOLA for law.
The most important thing is to choose one style and use it consistently throughout your text.
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Caulfield, J. (2024, February 28). The Basics of In-Text Citation | APA & MLA Examples. Scribbr. Retrieved June 11, 2024, from https://www.scribbr.com/citing-sources/in-text-citation-styles/
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Title: a novel time series-to-image encoding approach for weather phenomena classification.
Abstract: Rainfall estimation through the analysis of its impact on electromagnetic waves has sparked increasing interest in the research community. Recent studies have delved into its effects on cellular network performance, demonstrating the potential to forecast rainfall levels based on electromagnetic wave attenuation during precipitations. This paper aims to solve the problem of identifying the nature of specific weather phenomena from the received signal level (RSL) in 4G/LTE mobile terminals. Specifically, utilizing time-series data representing RSL, we propose a novel approach to encode time series as images and model the task as an image classification problem, which we finally address using convolutional neural networks (CNNs). The main benefit of the abovementioned procedure is the opportunity to utilize various data augmentation techniques simultaneously. This encompasses applying traditional approaches, such as moving averages, to the time series and enhancing the generated images. We have investigated various image data augmentation methods to identify the most effective combination for this scenario. In the upcoming sections, we will introduce the task of rainfall estimation and conduct a comprehensive analysis of the dataset used. Subsequently, we will formally propose a new approach for converting time series into images. To conclude, the paper's final section will present and discuss the experiments conducted, providing the reader with a brief yet comprehensive overview of the results.
Comments: | This preprint is the result of work in progress, therefore it should still be considered a draft |
Subjects: | Computer Vision and Pattern Recognition (cs.CV) |
Cite as: | [cs.CV] |
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Different subject disciplines call for citation information to be written in very specific order, capitalization, and punctuation. There are therefore many different style formats. Three popular citation formats are MLA Style (for humanities articles) and APA or Chicago (for social sciences articles). MLA style (print journal article):
At college level, you must properly cite your sources in all essays, research papers, and other academic texts (except exams and in-class exercises). Add a citation whenever you quote, paraphrase, or summarize information or ideas from a source. You should also give full source details in a bibliography or reference list at the end of your text.
A scientific citation style is a system of source citation that is used in scientific disciplines. Some commonly used scientific citation styles are: Chicago author-date, CSE, and Harvard, used across various sciences. ACS, used in chemistry. AMA, NLM, and Vancouver, used in medicine and related disciplines.
APA in-text citations The basics. In-text citations are brief references in the running text that direct readers to the reference entry at the end of the paper. You include them every time you quote or paraphrase someone else's ideas or words to avoid plagiarism.. An APA in-text citation consists of the author's last name and the year of publication (also known as the author-date system).
Citing a source means that you show, within the body of your text, that you took words, ideas, figures, images, etc. from another place. Citations are a short way to uniquely identify a published work (e.g. book, article, chapter, web site). They are found in bibliographies and reference lists and are also collected in article and book databases.
Research paper: In-text citation: Use superscript numbers to cite sources in the text, e.g., "Previous research has shown that^1,2,3…". Reference list citation: Format: Author (s). Title of paper. In: Editor (s). Title of the conference proceedings. Place of publication: Publisher; Year of publication. Page range.
Basic Principles of Citation. APA Style uses the author-date citation system, in which a brief in-text citation directs readers to a full reference list entry. The in-text citation appears within the body of the paper (or in a table, figure, footnote, or appendix) and briefly identifies the cited work by its author and date of publication.
A citation identifies for the reader the original source for an idea, information, or image that is referred to in a work. In the body of a paper, the in-text citation acknowledges the source of information used.; At the end of a paper, the citations are compiled on a References or Works Cited list.A basic citation includes the author, title, and publication information of the source.
3. How to Cite Different Source Types. In-text citation doesn't vary depending on source type, unless the author is unknown. Reference list citations are highly variable depending on the source. How to Cite a Book (Title, not chapter) in APA Format. Book referencing is the most basic style; it matches the template above, minus the URL section.
APA uses a reference list , an alphabetized list of sources following the end of the book or paper, for its complete list of sources referenced. This list should be titled "References" in bold and alphabetized by the first item in the citation, which, in most cases, is the author's last name. Each reference from this list must be cited in your ...
The Chicago/Turabian style of citing sources is generally used when citing sources for humanities papers, and is best known for its requirement that writers place bibliographic citations at the bottom of a page (in Chicago-format footnotes) or at the end of a paper (endnotes). The Turabian and Chicago citation styles are almost identical, but ...
A citation is a reference to the source of information used in your research. Any time you directly quote, paraphrase or summarize the essential elements of someone else's idea in your work, an in-text citation should follow. An in-text citation is a brief notation within the text of your paper or presentation which refers the reader to a ...
A reference list is usually listed at the end of a paper with the exception of footnotes which are at the bottom of each page. ... Citations communicate the breadth and depth of research. Identify the parts of a citation. Information included in a citation depends on the source and citation style you use. Use style manuals (in print or online ...
3. List the title of the research paper. Use sentence capitalization to write out the full title of the research paper, capitalizing the first word and any proper names. If it has a subtitle, place a colon and capitalize the first word of the subtitle. [3] For example: "Kringle, K., & Frost, J. (2012).
When using APA format, follow the author-date method of in-text citation. This means that the author's last name and the year of publication for the source should appear in the text, like, for example, (Jones, 1998). One complete reference for each source should appear in the reference list at the end of the paper.
Citation Examples | Books, Articles, Websites & More. Published on April 9, 2021 by Jack Caulfield . Revised on January 17, 2024. The most common citation styles are APA and MLA. To cite a source in these styles, you need a brief in-text citation and a full reference. Use the interactive tool to understand how a citation is structured and see ...
The essential difference between citations and references is that citations lead a reader to the source of information, while references provide the reader with detailed information regarding that particular source. Bibliography in research papers: A bibliography in research paper is a list of sources that appears at the end of a research paper ...
There are two main kinds of titles. Firstly, titles can be the name of the standalone work like books and research papers. In this case, the title of the work should appear in the title element of the reference. Secondly, they can be a part of a bigger work, such as edited chapters, podcast episodes, and even songs.
Academic papers are conversations between multiple authors and responsible scholarship dictates that we properly credit scholars with their work when it is mentioned. In addition to proving that you've done your due diligence as an academic, citations let readers know what you've read and where they can access a source you've used.
Throughout your paper, you need to apply the following APA format guidelines: Set page margins to 1 inch on all sides. Double-space all text, including headings. Indent the first line of every paragraph 0.5 inches. Use an accessible font (e.g., Times New Roman 12pt., Arial 11pt., or Georgia 11pt.).
What is Citation? A "citation" is the way you tell your readers that certain material in your work came from another source. It also gives your readers the information necessary to find the location details of that source on the reference or Works Cited page. A citation must include a set of parentheses. Without a set of parenthesis, one ...
Crucially, citation practices do not differ between the two styles of paper. However, for your convenience, we have provided two versions of our APA 7 sample paper below: one in student style and one in professional style. Note: For accessibility purposes, we have used "Track Changes" to make comments along the margins of these samples.
At college level, you must properly cite your sources in all essays, research papers, and other academic texts (except exams and in-class exercises). Add a citation whenever you quote, paraphrase, or summarize information or ideas from a source. You should also give full source details in a bibliography or reference list at the end of your text.
Rainfall estimation through the analysis of its impact on electromagnetic waves has sparked increasing interest in the research community. Recent studies have delved into its effects on cellular network performance, demonstrating the potential to forecast rainfall levels based on electromagnetic wave attenuation during precipitations. This paper aims to solve the problem of identifying the ...