Cita APA (7th ed.)

Hartung, F. (1957). Enlightened despotism. [s.n.].

Cita Chicago (17th ed.)

Hartung, Fritz. Enlightened Despotism. [London],: [s.n.], 1957.

Cita MLA (8th ed.)

Hartung, Fritz. Enlightened Despotism. [s.n.], 1957.