APA

(2007). Happy Faces : Flip the Page To Change the Picture. : Parragon.

Chicago

2007. Happy Faces : Flip the Page To Change the Picture. : Parragon.

Harvard

(2007). Happy Faces : Flip the Page To Change the Picture. : Parragon.

MLA

Happy Faces : Flip the Page To Change the Picture. : Parragon. 2007.