Cita APA (7th ed.)

Brecht, B. (1972). Bertolt Brecht collected plays. Vintage Books.

Cita Chicago (17th ed.)

Brecht, Bertolt. Bertolt Brecht Collected Plays. New York: Vintage Books, 1972.

Cita MLA (9th ed.)

Brecht, Bertolt. Bertolt Brecht Collected Plays. Vintage Books, 1972.