Cita APA (7th ed.)

Haas, W. (1958). Bert Brecht. Colloquium-Verl..

Cita Chicago (17th ed.)

Haas, Willy. Bert Brecht. Berlin: Colloquium-Verl., 1958.

Cita MLA (8th ed.)

Haas, Willy. Bert Brecht. Colloquium-Verl., 1958.