Cita APA (7th ed.)

Ritter, G., & Paret, P. (1968). Frederick the Great: A historical profile. University of California Press.

Cita Chicago (17th ed.)

Ritter, Gerhard, i Peter Paret. Frederick the Great: A Historical Profile. Berkeley: University of California Press, 1968.

Cita MLA (9th ed.)

Ritter, Gerhard, i Peter Paret. Frederick the Great: A Historical Profile. University of California Press, 1968.