APA (7th ed.) Citation

Worth, B., Mathieu, J., & Ruiz, A. (2013). Hark! a shark!: All about sharks. Random House.

Chicago Style (17th ed.) Citation

Worth, Bonnie, Joe Mathieu, and Aristides Ruiz. Hark! a Shark!: All About Sharks. New York: Random House, 2013.

MLA (9th ed.) Citation

Worth, Bonnie, et al. Hark! a Shark!: All About Sharks. Random House, 2013.