APA (7th ed.) Citation

Willems, M. (2021). Guess what!? (First edition.). Hyperion Books for Children.

Chicago Style (17th ed.) Citation

Willems, Mo. Guess What!? First edition. New York, New York: Hyperion Books for Children, 2021.

MLA (8th ed.) Citation

Willems, Mo. Guess What!? First edition. Hyperion Books for Children, 2021.

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