APA (7th ed.) Citation

Berenstain, S., Berenstain, J., & Berenstain, M. (2008). The Berenstain Bears' big bedtime book. HarperCollins.

Chicago Style (17th ed.) Citation

Berenstain, Stan, Jan Berenstain, and Mike Berenstain. The Berenstain Bears' Big Bedtime Book. New York: HarperCollins, 2008.

MLA (8th ed.) Citation

Berenstain, Stan, et al. The Berenstain Bears' Big Bedtime Book. HarperCollins, 2008.