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APA (6/e) Style Guide

A guide to help users create citations using APA (American Psychological Association) style.

Style highlights

 American Psychological Association (APA) Style Highlights*
For NYMC Students

Librarians in the Health Sciences Library (HSL) are available to assist New York Medical College (NYMC) students needing guidance applying APA style in their writing. Both general and specific questions may be directed to (914) 594-4200 or

*Always refer to the most current edition of the Publication Manual of the American Psychological Association (on Reserve in the library: WZ 345.A35 2001) as well as for updated information about electronic formats (including web documents, journal articles accessed electronically, and media).


    Margins should be 1” all around;
    12 point font size (Calibri, Courier or Times Roman);
    Double space all text (including references);
    Indent 5-7 spaces on first line of each paragraph;
    Quotations <40 words are incorporated in the text. Always give page numbers for quotations: (Smith, 2018, p.27)
    Quotations in text >40 should be indented, double-spaced and blocked
jhk    For electronic sources that do not have page numbers, use paragraph numbers. If  not available, cite heading and number of the paragraph:  (Myers, 2018, para.5).


    Works are listed alphabetically by author (or title if no author) at the end under the heading References;
    Author names are inverted (last name first);
    The first line of each entry begins at left margin, then indented 5-7 spaces and double-spaced;
    Journal titles should be italicized;
    Regardless of format, authors citing Internet sources must: direct readers as closely as possible to the information being cited and provide addresses that work.

Examples of some basic formats:

1. Article from a print journal:

Honan, E., & Bright, D. (2016). Writing a thesis differently. International Journal of Qualitative Studies in Education29(5) 731-743.

2. Article from online journal (with no doi assigned):

Wegar, K. (2000). Adoption, family ideology, and social stigma: Bias in community attitudes, adoption research, and practice. Family Relations, 49(4), 363-370. Retrieved from:

3. Article from online journal (with doi assigned):

Al Mutairi, N., Alrqobah, D., & Haji Hussain, N.Prevalence of metabolic syndrome in children with moderate to severe psoriasis treated with TNF inhibitors in comparison to conventional agents. Dermatologic Therapy, n/a. doi:10.1111/dth.12566

4. Online web document with a fixed publication date:

Government of Dubai, Dubai Statistics Center. (2008, January 12). Population – Emirate of Dubai 2008. Retrieved from:

5. Online web document with no fixed publication date:

Centers for Disease Control and Prevention. (2017) Key facts about seasonal flu vaccine.  Accessed Jan 16, 2018.

6. Book:

Eco, U., Mongiat, F. C., Farina, G., & Erspamer, F. (2015). How to write a thesis. Cambridge, MA: MIPress.

7. Chapter in a book:

Aronow, W. S., & Frishman, W. H. (2016). Chapter 15 - Drug treatment of stable coronary artery disease. In W.S. Aronow, & J. A. McClung (Eds.), Translational research in coronary artery disease (pp. 167-177). Boston: Academic Press.

Using Acronyms 

  • First use: (American Psychological Association [APA], 2009)
  • Subsequent use: (APA, 2009)

The corresponding reference list entry should contain the author’s full name, not the acronym.

  • Correct: American Psychological Association. (2009).
  • Incorrect: American Psychological Association (APA). (2009).
  • Incorrect: APA. 2009.