APA (7th ed.) Citation

O'Connor, J., Drainville, B., & Preiss-Glasser, R. (2009). Pajama Day. HarperCollins.

Chicago Style (17th ed.) Citation

O'Connor, Jane, Beth Drainville, and Robin Preiss-Glasser. Pajama Day. New York: HarperCollins, 2009.

MLA (8th ed.) Citation

O'Connor, Jane, et al. Pajama Day. HarperCollins, 2009.