Cita APA (7th ed.)

Happé, P. (1979). Four morality plays. Penguin Books.

Cita Chicago (17th ed.)

Happé, Peter. Four Morality Plays. Harmondsworth: Penguin Books, 1979.

Cita MLA (8th ed.)

Happé, Peter. Four Morality Plays. Penguin Books, 1979.