APA (7th ed.) Citation

Edgar, D., Barnes, M., & Sachs, A. (1987). David Edgar: Plays Three. Methuen Drama.

Chicago Style (17th ed.) Citation

Edgar, David, Mary Barnes, and Albie Sachs. David Edgar: Plays Three. London ; New York: Methuen Drama, 1987.

MLA (9th ed.) Citation

Edgar, David, et al. David Edgar: Plays Three. Methuen Drama, 1987.