APA-referens (7:e uppl.)

Schmidt, S. W., & Shelley, M. C. (1991). American government and politics today. West.

Chicago-referens (17:e uppl.)

Schmidt, Steffen W., och Mack C. Shelley. American Government and Politics Today. Saint Paul: West, 1991.

MLA-referens (9:e uppl.)

Schmidt, Steffen W., och Mack C. Shelley. American Government and Politics Today. West, 1991.