APA (7th ed.) Citation

Martin, B., Carle, E., & Paltrow, G. (2011). Polar bear, polar bear, what do you hear? (20th anniversary edition with audio CD.). Henry Holt.

Chicago Style (17th ed.) Citation

Martin, Bill, Eric Carle, and Gwyneth Paltrow. Polar Bear, Polar Bear, What Do You Hear? 20th anniversary edition with audio CD. New York: Henry Holt, 2011.

MLA (8th ed.) Citation

Martin, Bill, et al. Polar Bear, Polar Bear, What Do You Hear? 20th anniversary edition with audio CD. Henry Holt, 2011.

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