APA (7th ed.) Citation

Hillenbrand, J., & Hillenbrand, W. (2006). What a treasure! Holiday House.

Chicago Style (17th ed.) Citation

Hillenbrand, Jane, and Will Hillenbrand. What a Treasure! New York: Holiday House, 2006.

MLA (9th ed.) Citation

Hillenbrand, Jane, and Will Hillenbrand. What a Treasure! Holiday House, 2006.