APA Citation

Willems, M. (2010). Let's say hi to friends who fly! / by Mo Willems: By Mo Willems. New York: Balzer & Bray.

Chicago Style Citation

Willems, Mo. Let's Say Hi to Friends Who Fly! / By Mo Willems: By Mo Willems. New York: Balzer & Bray, 2010.

MLA Citation

Willems, Mo. Let's Say Hi to Friends Who Fly! / By Mo Willems: By Mo Willems. New York: Balzer & Bray, 2010.

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