Cita APA (7th ed.)

Haas, W. (1970). Bert Brecht. Frederick Ungar Publishing.

Cita Chicago (17th ed.)

Haas, Willy. Bert Brecht. Nueva York: Frederick Ungar Publishing, 1970.

Cita MLA (9th ed.)

Haas, Willy. Bert Brecht. Frederick Ungar Publishing, 1970.