APA (7th ed.) Citation

Napoli, D. J., Andersen, H. C., & Judge, L. (2006). Ugly. Hyperion Books for Children.

Chicago Style (17th ed.) Citation

Napoli, Donna Jo, H. C. Andersen, and Lita Judge. Ugly. New York: Hyperion Books for Children, 2006.

MLA (8th ed.) Citation

Napoli, Donna Jo, et al. Ugly. Hyperion Books for Children, 2006.

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