APA (7th ed.) Citation

Buzo, A., Hibberd, J., & Romeril, J. (1970). Plays. Penguin Books Australia.

Chicago Style (17th ed.) Citation

Buzo, Alexander, Jack Hibberd, and John Romeril. Plays. Ringwood, Vic.: Penguin Books Australia, 1970.

MLA (8th ed.) Citation

Buzo, Alexander, et al. Plays. Penguin Books Australia, 1970.