Cita APA (7a ed.)

Morgenthau, H. J. (1964). The purpose of american politics (5 ed.). Vintage.

Cita Chicago Style (17a ed.)

Morgenthau, Hans. J. The Purpose of American Politics. 5 ed. New York: Vintage, 1964.

Cita MLA (8a ed.)

Morgenthau, Hans. J. The Purpose of American Politics. 5 ed. Vintage, 1964.