APA-referens (7:e uppl.)

Patterson, J. T. (1976). America in the twentieth century. Harcourt.

Chicago-referens (17:e uppl.)

Patterson, James T. America in the Twentieth Century. New York: Harcourt, 1976.

MLA-referens (9:e uppl.)

Patterson, James T. America in the Twentieth Century. Harcourt, 1976.