APA (7th ed.) Citation

Gielgud, J., Miller, J., & Powell, J. (1979). An actor and his time. Sidgwick & Jackson.

Chicago Style (17th ed.) Citation

Gielgud, John, John Miller, and John Powell. An Actor and His Time. London: Sidgwick & Jackson, 1979.

MLA (8th ed.) Citation

Gielgud, John, et al. An Actor and His Time. Sidgwick & Jackson, 1979.