APA (7th ed.) Citation

Townsend, S., Howard, K., & Blaikley, A. (1985). The secret diary of Adrian Mole aged 13 3/4: The play. Methuen.

Chicago Style (17th ed.) Citation

Townsend, Sue, Ken Howard, and Alan Blaikley. The Secret Diary of Adrian Mole Aged 13 3/4: The Play. London: Methuen, 1985.

MLA (9th ed.) Citation

Townsend, Sue, et al. The Secret Diary of Adrian Mole Aged 13 3/4: The Play. Methuen, 1985.