APA (7th ed.) Citation

Donahue & Muehlenhardt. (2007). Silly sports: A book of sports joke. Picture Window Books.

Chicago Style (17th ed.) Citation

Donahue and Muehlenhardt. Silly Sports: A Book of Sports Joke. Minneapolis: Picture Window Books, 2007.

MLA (8th ed.) Citation

Donahue and Muehlenhardt. Silly Sports: A Book of Sports Joke. Picture Window Books, 2007.

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