APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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