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AMA (11th ed.) Style Guide: Book (2 to 6 authors)

An introductory guide to creating end-of-paper references in accordance with the 11th edition of the AMA Manual of Style (2020).


BASIC COMPONENTS (Book with 2 to 6 Authors)

  • FIRST AUTHOR NAME [comma] SECOND AUTHOR NAME . . . [period]
  • TITLE OF BOOK [period]
  • EDITION (if any) [period]
  • PUBLISHER NAME [semicolon]
  • YEAR OF COPYRIGHT [period]

For e-books, add the following:

  • DATE OF ACCESS [period]
  • URL




Last name first, followed by first initial and (if given) additional initials. No blank space between initials.


Cooper T
Berben SAA
Gausche-Hill M
de la Peña SK

Separate multiple authors with a comma. End the list with a period. Do not add the word "and" before the final author name.


Oren E, Kiene SM.

Schanler RJ, Kiechl-Kohlendorfer U, Kim JH.

Rivadeneyra-Posadas JJ, Cubo E, Simón-Vicente L, Garcia-Bustillo Á.

Zhang N, Xiong X, Xu J, Zeng Q, Li J.

Crowder L, Welniak TL, Hoogland AI, Small BJ, Rodriguez Y, Carpenter KM.



Italicize the full title. Capitalize the first letter of major words. Articles, conjunctions, prepositions (3 or fewer letters), and the "to" in infinitives should all remain in lowercase. End with a period.


Everything I Know About Women I Learned From My Tractor.

How to Preserve Animal and Other Specimens in Clear Plastic.

Why Cats Paint: A Theory of Feline Aesthetics.

Electricity in Gynaecology: The Practical Uses of Electricity in Diseases of Women.

Knitting With Dog Hair: Better a Sweater From a Dog You Know and Love Than From a Sheep You'll Never Meet.


EDITION (if any)

Include edition information when given. Present numbers as ordinals--2nd, 3rd, 4th, etc. Do not superscript the letters (2nd = wrong; 2nd = right). Add the abbreviation "ed" followed by a period.


7th ed.

21st ed.

Rev ed.

5th rev ed.

Updated ed.



Include the publisher's name as given on the title page, modifying it as follows:

  • Abbreviate corporate words (Company, Corporation, etc.). Do not add a period.
  • Remove the period from existing corporate abbreviations such as Co., Corp., Inc., Ltd.
  • Remove periods from initials.
  • Remove commas.
  • Remove the word "the" if it's the first word in the name.
  • Replace the word "and" with an ampersand (&).

Add a semicolon following the publisher's name.


Springer Pub. Co.    Springer Pub Co;

W.W. Norton & Company     WW Norton & Co;

Holt, Rinehart and Winston     Holt Rinehart & Winston;

Neil M. Davis Associates    Neil M Davis Associates;

The University of Chicago Press    University of Chicago Press;



Include the year of copyright/publication, followed by a period.






DATE OF ACCESS / URL (e-books only)

Include the word "Accessed" followed by the date of access (month day [comma] year) and a period. Do not abbreviate the month. Then add a stable URL for the book. Do not include a period after the URL.


Accessed September 14, 2016.

Accessed June 5, 2021.

Accessed February 29, 2020.


SAMPLE REFERENCES (Book with 2 to 6 Authors)

Chakrabarty B, Pandey RK. Electoral Dynamism of Indian Politics: Deciphering the Enigma. Sage Publications India Pvt Ltd; 2021. Accessed October 3, 2021.

Hilty JA, Keeley ATH, Lidicker WZ Jr. Corridor Ecology: Linking Landscapes for Biodiversity Conservation and Climate Adaptation. 2nd ed. Island Press; 2019. Accessed January 12, 2023.

Crannell A, LaRose G, Ratliff T, Rykken E. Writing Projects for Mathematics Courses: Crushed Clowns, Cars, and Coffee to Go. Mathematical Association of America; 2004.

Ebert DS, Musgrave FK, Peachey D, Perlin K, Worley S. Texturing and Modeling: A Procedural Approach. 3rd ed. Morgan Kaufmann; 2003.

Stevens CS, Vogel R, Franklin J, Key E, Sawyer KV, Hiebert J. Unlikely Pursuits. Wings of Hope Publishing Group; 2016.