APA (7th ed.) Citation

Barron, T. A., & Soentpiet, C. K. (2000). Where is Grandpa? Philomel Books.

Chicago Style (17th ed.) Citation

Barron, T. A., and Chris K. Soentpiet. Where Is Grandpa? New York: Philomel Books, 2000.

MLA (9th ed.) Citation

Barron, T. A., and Chris K. Soentpiet. Where Is Grandpa? Philomel Books, 2000.