Cita APA (7th ed.)

Dufek, G. J. (1957). Operation deepfreeze (1a. ed.). Harcourt, Brace and Company.

Cita Chicago (17th ed.)

Dufek, George J. Operation Deepfreeze. 1a. ed. Nueva York: Harcourt, Brace and Company, 1957.

Cita MLA (9th ed.)

Dufek, George J. Operation Deepfreeze. 1a. ed. Harcourt, Brace and Company, 1957.