Cita APA (7a ed.)

Barrett, A. A. (1990). Caligula: The corruption of power. Yale University Press.

Cita Chicago Style (17a ed.)

Barrett, Anthony A. Caligula: The Corruption of Power. New Haven [etc.]: Yale University Press, 1990.

Cita MLA (9a ed.)

Barrett, Anthony A. Caligula: The Corruption of Power. Yale University Press, 1990.