APA (7th ed.) Citation

Willems, M. (2007). I am invited to a party! Hyperion Books for Children.

Chicago Style (17th ed.) Citation

Willems, Mo. I Am Invited to a Party! New York: Hyperion Books for Children, 2007.

MLA (8th ed.) Citation

Willems, Mo. I Am Invited to a Party! Hyperion Books for Children, 2007.