APA (7th ed.) Citation

Katschke, J., Adler, H., & Griffard, R. (2002). April Fools' rules! HarperEntertainment.

Chicago Style (17th ed.) Citation

Katschke, Judy, Howard Adler, and Robert Griffard. April Fools' Rules! New York: HarperEntertainment, 2002.

MLA (9th ed.) Citation

Katschke, Judy, et al. April Fools' Rules! HarperEntertainment, 2002.

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