APA Style Guide
The American Psychological Association (APA) documentation style is widely used for writing in the social and health sciences.
The current 7th edition of the Publication Manual of the American Psychological Association is available in print at the Biddeford and Portland Libraries.
The APA Style Website also offers guidance, citation examples, and sample papers.
We also have a Quick Reference Guide for APA Style [PDF].
Reference Lists
List the references you cite in your work alphabetically by author’s last name in a references section at the end of your paper.
Note: For sources with multiple authors, list up to 20; for 21 authors or more, include the first 19 followed by three dots (…) then the name of the last author.
Articles
- Journal Article
- Format:
Author, A. A., Author B. B., & Author C. C. (Year of publication). Title of article. Title of Journal, Volume#(issue#), page range. URL or DOI - Note:
Use DOI if available, otherwise use the permalink URL of the article. Do not add a period after a URL or DOI as it may interfere with the link. If citing a print journal, omit this section. - Example:
Brown, J. D., Sintzel, J., St. Arnault, D., & George, N. (2009). Confidence to foster across cultures: Caregiver perspectives. Journal of Child and Family Studies, 18(6), 633 -642. https://doi:10.1007/s10826-009-9264-z - Newspaper Article
- Format:
Author, A. A. (Year, Month Day of publication) Title of article. Title of newspaper, URL - Note:
If the article is from print newspaper, include the pages in place of the URL. - Example:
Sharma, B., & Mashal, M. (2024, Aug 01). The Overlooked Reason That Planes Crash So Often in Nepal. The New York Times, https://www.proquest.com/newspapers/overlooked-reason-that-planes-crash-so-often/docview/3086651867/se-2
Books & e-books
Note: Use the same format for both print books and e-books.
- Book or e-book
- Format:
Author, A. A., Author, B.B., & Author, C.C. (Year of publication) Title of book. Publisher. DOI or URL if applicable - Note:
Do not add a period after a URL or DOI as it may interfere with the link. - Example:
Robnett, R. H., & Chop, W. C. (2010). Gerontology for the health care professional. Jones and Bartlett Publishers. - Edited Book, No Author
- Format:
Editor, A. A. (Ed.). (Year of publication). Title of book. Publisher. DOI or URL if applicable - Example:
Carrin, G. (Ed.). (2009). Health systems policy, finance, and organization. Academic Press. - Chapter in an Edited Book
- Format:
Author, A. A., & Author, B. B. (Year of publication). Title of chapter. In A. A. Editor, & B. B. Editor (Eds.), Title of book (pp. page range of chapter). Publisher. DOI or ULR if applicable - Example:
Hart, L. A. (2006). Community context and psychosocial benefits of animal companionship. In A. H. Fine (Ed.), Handbook on animal assisted therapy (pp. 73- 94). Elsevier.
Web Sources
Notes:
- If you cannot locate a publication date, use (n.d.).
- Include a retrieval date if the page’s contents are likely to change over time, such as a publicly edited wiki.
- Web Pages
- Format:
Author, A. A. (Year, Month Date of publication). Title of web page. Site Name. URL - Example:
Di Sario, F. (2024, July 31). Heat wave blanketing Olympics “impossible” without climate change. Politico. https://www.politico.eu/article/scorching-olympic-heat-impossible-without-climate-change-rising-temperature - Organization as Author
- Note: If the webpage is authored by an organization or group, use the group name in place of the author names. Omit the site name if it is the same as the author name.
- Format:
Organization. (Year, Month Date). Title of web page. URL - Example:
Delta. (2024). Sustainability. Retrieved July 25, 2024, from https://www.delta.com/us/en/about-delta/sustainability - Blog Posts
- Format:
Author, A. A. (Year, Month Date of publication). Blog post title. Blog Name. Organization (if applicable.) URL - Example:
Doctorow, C. (2019, September 24). At the UN, Greta Thunberg excoriates world leaders and her elders for climate inaction. Boing Boing. https://boingboing.net/2019/09/24/the-house-is-on-fire.html - Social Media Post
- Format:
Author, A. A. or Name of Group [@username if applicable]. (Year, Month Day of publication). Content of the post up to the first 20 words [Type of post]. Site Name. URL - Example:
Marine Mammals of Maine. (2024, July 9). This weaned harbor seal pup found himself on a remote beach in Phippsburg, Maine 10 days ago. While he appears [image]. Facebook. https://www.facebook.com/photo/?fbid=881484054014102&set=a.621180866711090
Videos
- Film or Movie
- Basic Format:
Director, A. A. (Role).(Date of publication). Film title [Film]. Production Company; Studio. - Example:
Stone, R. (Director). (2010). Earth Days [Film]. PBS. - Episode of Television Show
- Basic Format
Writer, A. A. (Writer), & Director, A. A. (Director). (Original air date). Title of episode (Season number, Episode number) [TV series episode]. In A. Executive Producer, B. Executive Producer (Producers), Series title. Production Company(s). - Example:
Sherman-Palladino, A. (Writer), & Mansuco, G. (Director). (2002, February 26). Lost and found (Season 2, Episode 15) [TV series episode]. In A. Sherman-Palladino, D. Palladino, & G. Polone (Executive Producers), Gilmore Girls. Warner Bros. Television. - YouTube Videos
- Basic Format:
Creator, A. A. (Year, Month Date of publication). Title of video [Video]. YouTube. URL - Example:
NASA Climate Change. (2020, March 31). Rising Tides: Understanding sea level rise [Video]. YouTube. https://www.youtube.com/watch?v=cXzfOpZSmk8&ab_channel=NASAClimateChange - TED Talks
- Basic Format:
Speaker, A. A. (Year, Month of publication). Title of talk [Video]. Ted Conferences. URL - Example:
Cain, S. (2012). The Power of introverts [Video]. TED Conferences. https://www.ted.com/talks/susan_cain_the_power_of_introverts/up-next?referrer=playlist-the_most_popular_talks_of_all&language=en
Images
- Format:
- Creator, A. A. (Year). Title of Image [Format]. Source. URL
- Example:
- Hacking, C. (2018). CT head coronal – labeling questions [image]. Radiopaedia. https://radiopaedia.org/cases/ct-head-coronal-labelling-questions?lang=us
Podcasts
- Format:
- Host, A. A. (Host). (Year, Month Date of publication). Episode title [Audio podcast episode]. In Podcast name. Production Company. URL
- Example:
- Rooks, J. (Host). (2019, November 6). Conserving Maine’s islands: What’s being done to protect Maine islands from climate change & threats [Audio podcast episode]. In Maine Calling. Maine Public. https://www.npr.org/podcasts/381443550/maine-calling
Dissertations
- Published Dissertation
- Format:
Author, A. A. (Year of publication). Dissertation title [Doctoral Dissertation, University Name]. Database or Repository. URL - Note:
If the dissertation is from a research database, use the database name instead of a URL. - Example:
Vorse, J. (2022). The effect of post-harvest storage temperature and drying method on the pathogen load of edible kelp [Masters Thesis, University of New England]. DUNE. https://dune.une.edu/theses/445/ - Unpublished Dissertation
- Format:
Author, A. A. (Year of submission).Title of dissertation [Unpublished doctoral dissertation]. University Name. - Example
Smith, M. E. (2020). Ethical leadership in higher education: Perceptions and practices at a private university [Unpublished doctoral dissertation]. University of New England.
Legal Cases
For information on preparing legal references, the APA refers writers to the latest edition of The Bluebook: A Uniform System of Citation.
- Supreme Court Case
- Format
Name v. Name, Volume # U.S. Page #. (Year). URL - Example:
Penneast Pipeline Co. LLC v. New Jersey et al. 594 U.S. 482. https://www.supremecourt.gov/opinions/20pdf/594us2r62_19m1.pd
AI Tools
- Note:
- Please use caution when researching with AI tools.
- Format:
- Name of Creator Company. (Year).Title of tool (version) [Large language model]. URL
- Example:
- OpenAI. (2024). ChatGPT (3.5) [Large language model]. https://chatgpt.com
Class Materials & Presentations
Note: If you retrieved a handout (not a journal article) from Brightspace, include the URL of the Brightspace login page (i.e., https://brightspace.une.edu/d2l/home).
Citing this content may vary by program, course, or instructor. Be sure to check with your instructor about how they would like you to cite these resources from your course.
- Class Handout from Brightspace
- Format:
Instructor/Presenter, A. A. (Year handout was created, if known). Title of handout [Class handout]. Brightspace. https://brightspace.une.edu/ - Example:
Smith, J. (2024). Laboratory safety [Class handout]. Brightspace. https://brightspace.une.edu/d2l/home - Presentation Slides
- Note:
If the slides are from Brightspace, and you are writing for an audience with access to Brightspace, indicate “Brightspace” and the URL. - Format:
Instructor/Presenter, A. A. (Year presentation was created, if known). Title of presentation [PowerPoint slides]. Brightspace. URL.
- Example:
Graham, J. (2021). Introduction: Jean Watson [PowerPoint slides]. Brightspace. https://brightspace.une.edu/d2l/home - Class Lecture Notes
- Format:
Instructor/Presenter, A. A. (Date of lecture). [Lecture notes on topic]. Program/Department, University name. URL of instructor’s faculty website - Example:
Stewart, C. (2024, June 25). [Lecture notes on introduction to library services]. College of Osteopathic Medicine, University of New England. https://www.une.edu/people/cindy-stewart
In-Text Citations
The in-text citation is a brief reference within your text that indicates the source you consulted. It should properly attribute any ideas, paraphrases, or direct quotations to your source and should direct readers to an entry in the reference list.
Paraphrasing
Include an in-text citation whenever you paraphrase or summarize the ideas of another author. An in-text citation consists of the author’s name and publication year in parentheses at the end of the sentence containing the summary.
Example: (Winkleman, 2020).
How do I cite if I am paraphrasing more than one consecutive sentence from the same source?
Using the Author’s Name in a Sentence
Use just the publication year in parentheses when naming the author in a sentence.
Example:
“As a leading expert in the subject, Winkleman (2020) asserts that…”
Multiple Authors
Two Authors
For two authors, separate using an ampersand (&). If you are using the authors’ names in the sentence, use the word “and.”
Example:
(Winkleman & Clark, 2019) or “According to Winkleman and Clark (2019)…”
Three or more Authors
For three or more authors, list only the first author’s name followed by “et al.” in every citation, even the first, unless doing so would create ambiguity between different sources.
Example:
(Winkleman et al., 2019) or “Winkleman et al. (2019) suggest…”
Direct Quote
Add the page number when using a direct quote.
Example: (Winkleman, 2009, p. 134).
Questions & Help
If you have questions about this, or another, topic, contact a librarian for help!
For additional support, visit the Student Academic Success Center (SASC).