Book with one author
List the last name first, followed by first and middle initials, followed by the publication year. Separate the name and year with a period. After the title, give the place of publication and the name of the publisher.
Gore A. 2006. An inconvenient truth: The planetary emergency of global warming and what we can do about it. Emmaus (PA): Rodale.
Book with two to ten authors
List the authors in the order in which they appear on the title page. For a work with two to ten authors, list all the authors. Separate the names with a comma.
Randall D, Burggren W, French K, Eckert R. 2002. Animal physiology: mechanisms and adaptations. New York: WH Freeman.
Longini IM Jr, Halloran ME, Nizam A, Yang Y. 2004. Containing pandemic influenza with antiviral agents. Am J Epidemiol. 159(7):623-633.
Sources with eleven or more authors:
Commas separate author names. If there are more than ten authors, list the first ten, then "et al.," which stands for "and others."