Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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