APA (7th ed.) Citation

Waters, R. (1987). It's tough at the bottom: 3 comic plays (1. publ.). Blackwell.

Chicago Style (17th ed.) Citation

Waters, Roy. It's Tough at the Bottom: 3 Comic Plays. 1. publ. Oxford: Blackwell, 1987.

MLA (9th ed.) Citation

Waters, Roy. It's Tough at the Bottom: 3 Comic Plays. 1. publ. Blackwell, 1987.

Warning: These citations may not always be 100% accurate.