APA (7th ed.) Citation

Marzollo, J., & Regan, L. (2010). Pierre the penguin: A true story. Sleeping Bear Press.

Chicago Style (17th ed.) Citation

Marzollo, Jean, and Laura Regan. Pierre the Penguin: A True Story. Ann Arbor, MI: Sleeping Bear Press, 2010.

MLA (8th ed.) Citation

Marzollo, Jean, and Laura Regan. Pierre the Penguin: A True Story. Sleeping Bear Press, 2010.

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