Cita APA (7a ed.)

Petersson, T. (1920). Cicero: A biography. University of California Press.

Cita Chicago Style (17a ed.)

Petersson, Torsten. Cicero: A Biography. Los Angeles: University of California Press, 1920.

Cita MLA (9a ed.)

Petersson, Torsten. Cicero: A Biography. University of California Press, 1920.