APA (7th ed.) Citation

Gantos, J., & Rubel, N. (2009). The nine lives of Rotten Ralph. Houghton Mifflin Books for Children.

Chicago Style (17th ed.) Citation

Gantos, Jack, and Nicole Rubel. The Nine Lives of Rotten Ralph. Boston: Houghton Mifflin Books for Children, 2009.

MLA (8th ed.) Citation

Gantos, Jack, and Nicole Rubel. The Nine Lives of Rotten Ralph. Houghton Mifflin Books for Children, 2009.