Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Bullock, Alan. Hitler: A Study in Tyranny. Nueva York: Harper & Row, 1962.

Cita MLA (9th ed.)

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