Cita APA (7th ed.)

Shaw, B. 1. (1979). Plays pleasant. Penguin Books.

Cita Chicago (17th ed.)

Shaw, Bernard 1856–1950. Plays Pleasant. Harmondsworth, Middlesex: Penguin Books, 1979.

Cita MLA (9th ed.)

Shaw, Bernard 1856–1950. Plays Pleasant. Penguin Books, 1979.