APA (7th ed.) Citation

Lerner, A. J., Loewe, F., & Shaw, B. (1959). My Fair Lady: A musical play in two acts. Penguin Books.

Chicago Style (17th ed.) Citation

Lerner, Alan Jay, Frederick Loewe, and Bernard Shaw. My Fair Lady: A Musical Play in Two Acts. Harmondsworth: Penguin Books, 1959.

MLA (9th ed.) Citation

Lerner, Alan Jay, et al. My Fair Lady: A Musical Play in Two Acts. Penguin Books, 1959.