Cita APA (7th ed.)

Bullock, A. (1962). Hitler: A study in tyranny. Harper torchbook.

Cita Chicago (17th ed.)

Bullock, Alan. Hitler: A Study in Tyranny. New York: Harper torchbook, 1962.

Cita MLA (9th ed.)

Bullock, Alan. Hitler: A Study in Tyranny. Harper torchbook, 1962.