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AJP Style

This guide provides information and examples (in-text, references, and formatting) to help you cite sources in AJP style. Why cite? Citing sources gives credit to the author(s) whose work you used to support your research.

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Video Tutorial: AJP In-Text Citations and References

About AJP Style

The Kinesiology program at the University of Guelph-Humber follows the citation guidelines provided by the American Physiological Society's American Journal of Physiology. Your professor may require variations on the official style. Please consult your professor for citing requirements for your assignments and essays to avoid any confusion.

All citation examples in this LibGuide have been taken from the updated American Physiological Society web site: on References to see examples.

General Rules - Citations

Direct Quotation

If you quote directly (use the exact words from your source), use quotation marks and cite the page in the in-text citation.


If you paraphrase (use your own words to express the author's ideas), do not use quotation marks.  You are not required to use the page number in the in-text citation.  

AJP References

According to the American Physiological Society:

“Reference lists should be arranged alphabetically by author and numbered serially. The reference number should be placed in parentheses at the appropriate place in the text” (2).

AJP requires you to list every single author instead of using the term ‘et al’.  The one exception to this rule is when a group of authors are part of a research group that has a name of its own.  In this case, the research group can be used as the author name in your citation (1).


1. D’Author AA. 2017. Example References [Online].  American Physiological Society. [8 Dec. 2017].

2.  Other-Author AA. 2017. Manuscript Composition [Online].  American Physiological Society. [8 Dec. 2017].

Please note: neither of these web pages actually have author attribution; names have been created for illustrative purposes.  Please note the use of quoting and paraphrasing in the examples above. 


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