APA (7th ed.) Citation

Shaffer, P. (1981). Four plays / Peter Shaffer. Penguin.

Chicago Style (17th ed.) Citation

Shaffer, Peter. Four Plays / Peter Shaffer. Harmondsworth: Penguin, 1981.

MLA (9th ed.) Citation

Shaffer, Peter. Four Plays / Peter Shaffer. Penguin, 1981.

Warning: These citations may not always be 100% accurate.