Citazione APA

Mo Willems. (2007). There is a bird on your head! Hyperion Books for Children.

Stile di citazione Chicago

Mo Willems. There Is a Bird on Your Head! New York, N.Y.: Hyperion Books for Children, 2007.

Citazione MLA

Mo Willems. There Is a Bird on Your Head! Hyperion Books for Children, 2007.