APA (7th ed.) Citation

Westlake, D. E. (2007). What's so funny? (1. ed.). Warner Books.

Chicago Style (17th ed.) Citation

Westlake, Donald E. What's so Funny? 1. ed. New York: Warner Books, 2007.

MLA (9th ed.) Citation

Westlake, Donald E. What's so Funny? 1. ed. Warner Books, 2007.