APA Style

Carle, Eric, Martin, Bill. (2012). Polar bear, polar bear, what do you hear? . New York: H. Holt,.

Chicago Style

Carle, Eric, Martin, Bill. Polar bear, polar bear, what do you hear?. New York: H. Holt,, 2012. Text.

MLA Style

Carle, Eric, Martin, Bill. Polar bear, polar bear, what do you hear?. New York: H. Holt,, 2012. Text.

Turabian Style

Carle, Eric, Martin, Bill. Polar bear, polar bear, what do you hear?. New York: H. Holt,, 2012. Print.