APA-referens (7:e uppl.)

Whitney, D. C., & Whitney, R. V. (1990). The American presidents (7th ed.). Prentice Hall Press.

Chicago-referens (17:e uppl.)

Whitney, David C., och Robin Vaughn Whitney. The American Presidents. 7th ed. New York: Prentice Hall Press, 1990.

MLA-referens (9:e uppl.)

Whitney, David C., och Robin Vaughn Whitney. The American Presidents. 7th ed. Prentice Hall Press, 1990.