APA (7th ed.) Citation

Shannon, D. (2005). Oops! A Diaper David Book. Blue Sky Press.

Chicago Style (17th ed.) Citation

Shannon, David. Oops! A Diaper David Book. New York: Blue Sky Press, 2005.

MLA (8th ed.) Citation

Shannon, David. Oops! A Diaper David Book. Blue Sky Press, 2005.