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.
Atenció: Aquestes cites poden no estar 100% correctes.