AMA Style (10th ed.): Citing Print Materials

Capitalization of titles in references:

For all titles in citations, retain the original spelling, abbreviations, and capitalization as originally published.

If no original capitalization is available, follow these rules:

Book titles: capitalize all major words. Do not capitalize the, an, a, in, for, or but, unless this word begins the title. Acronyms (NIH, HIV, etc.) should be shown in all caps. 

Chapter titles within books: capitalize only the first word. Acronyms (NIH, HIV, etc.) should be shown in all caps.

Journal titles: capitalize all major words. Do not capitalize the, an, a, in, for, or but, unless this word begins the title. Acronyms (NIH, HIV, etc.) should be shown in all caps. 

Journal article titles: capitalize only the first word. Acronyms (NIH, HIV, etc.) should be shown in all caps. 

Personal communications:

AMA Style states that personal communications such as phone calls, emails, conversations, etc. are not included in the reference list. However, you should cite these materials parenthentically within the text. Provide the name and highest academic degree of the author, type of communication, and date sent. If this would compromise patient anonymity, replace the name with a title and remove the day of communication.

Examples:

Individuals on this new experimental drug should not take aspirin. (Sara P. Norris, M.D., email communication, November 3, 2012.)

For all five patients I have seen with this rare disorder, I have prescribed Interferon. (Physician at LAC + USC Healthcare Network, phone call, October 2012).

Anonymous works:

Follow the citation style for book, journal, web site, etc., and omit the author name. 

Non-scholarly materials appearing in journals (editorials, letters to the editor, comments, interviews, etc.):

Include the article type in [brackets] after the title.

Example:

Boden WE, Roberts WC. Williams Edward Boden, MD: a conversation with the editor [Interview]. Am J Cardiol. 2012;110(1):145-159.

How to cite information when there is no guidance on this website:

Read the AMA Manual of Style, section 3, to find guidance for citing many other types of publications and information.

If there is no guidance on your specific type of information, adapt an existing AMA citation style.