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AMA 10th Referencing Guide: Book chapter

Referencing guide for the 10th Edition for AMA Style

In text numbering

Superscript numbers

The numbers in text are in superscript1 and occur at the end of the clause in which you used the information.  They occur outside “quotation marks,”2 commas,3 (parentheses)4 and full stops.5 However, they occur inside semicolons6; and colons7:

Do not leave a space between the last letter or punctuation mark and the number.

Re-use numbers for the same citation

Citations should be numbered sequentially – that is, the first source you cite is 1, the second source is 2 and so on.

However, once you have given a source a number, it will keep that number throughout your paper. So, if you use your first source again, no matter how often you use it, it is still 1.

Citing more than one work at a time

Use commas to show that more than one work is being cited, and use hyphens for several works that would be numbered sequentially:

These side effects can have implications for the patient's mental health, as numerous studies have shown.1,3,6-9

Relationship between in-text citations and reference list

Your reference list follows the order of the numbers used in the text. The first source you cite in the text is 1 and the reader will look for number 1 in the reference list to find the full citation; the fifth source you use is 5 and the full citation is listed at number 5 in the reference list (and so on).

Using author's names in-text:

If including an author in the text of a sentence, use the surnames of authors and add the citation number after the author’s surname. 

  • For one or two authors list all names
    • Smith1 reported on the survey.
    • Smith and Watson2 reported on the survey.
  • For more than two authors list the first author and follow by et al
    • Smith et al3 reported on the survey. 

Chapter of a book

Use this format if:

  • Each chapter in the book was written by different authors (the book has editors responsible for the work as a whole), and you are using information that is specific to the individual chapters.
  • Cite each chapter you use separately.

You will need (minimum information in bold):

  • Author(s)
  • Chapter Title (in sentence case - not in italics)
  • Editor(s)
  • Book title (in italics - in Title Case)
  • Volume number and title (if there is more than one volume).
  • Edition number (if it is not the first edition)
  • City of Publication and state abbreviation (if published in America) or country (if not published in America)
  • Publisher's name
  • Latest copyright year
  • Inclusive page numbers
  • DOI or URL (if online)
  • Accessed date (if online - only if using URL)


Standard chapter pattern:


Pay close attention to the punctuation used in these examples – including case, italics, the order of dates and spaces.

Author AA, Author BB. Title of chapter. In: Editor AA, Editor BB, eds. Book Title. Vol no. Nth ed. City, State abb. or Country:  Publisher; Year:page numbersDOI or URL. Accessed Month DD, YYYY.


  1. Karmakar M. Ultrasound-guided central neuraxial blocks. In: Narouze SN, ed. Atlas of Ultrasound-Guided Procedures in Interventional Pain Management. New York, NY: Springer; 2011:161-178. doi:10.1007/978-1-4419-1681-5_12.
  2. Shaparin N, Shah A, Gritsenko K. Pharmacological agents: opioids. In: Urman RD, Vadivelu N, eds. Perioperative Pain Management. Oxford, England: Oxford University Press; 2013:29-37. Accessed November 25, 2012.
  3. Banasik J. Alterations in cardiac function. In: Copstead L, Banasik J, eds. Pathophysiology. 4th ed. St. Louis, MI: Saunders Elsevier; 2010:429-460.
    Dog TL. Botanicals in the management of pain. In: Audette JF, Bailey A, eds. Contemporary Pain Medicine: Integrative Pain Medicine: the Science and Practice of Complementary and Alternative Medicine in Pain Management. Totowa, NJ: Humana Press; 2008:447-470.
  4. Bailey IB, Shaw PM. Abdominal aorta repair. In: Abai A, Abu-Ghosh A, Acharya, AB, et al. StatPearls. Treasure Island, FL: StatsPearls Publishing; 2020. Updated October 25, 2019. Accessed April 22, 2020.

N.B. StatsPearls is technically an eBook, but the book as a whole and the individual chapters are updated at different times. Therefore, in addition to giving the publication date for the book, you also need to include the Updated date for the chapter.

Multiple Authors - Rules

If there are six authors/editors or less, include the names of all authors/editors.

If there are more than six authors/editors, include the first three names, then shorten with et al.

1.  Hallal AH, Amortegui JD, Jeroukhimov IM, et al. Magnetic resonance cholangiopancreatography accurately detects common bile duct stones in resolving gallstone pancreatitis. J Am Coll Surg. 2005;200(6):869-75.

These rules also apply to editors, translators and other people who need to be cited for the source.

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