APA (7th ed.) Citation

Shipton, J., & Nascimbeni, B. (1999). What if? Dial Books for Young Readers.

Chicago Style (17th ed.) Citation

Shipton, Jonathan, and Barbara Nascimbeni. What If? New York: Dial Books for Young Readers, 1999.

MLA (8th ed.) Citation

Shipton, Jonathan, and Barbara Nascimbeni. What If? Dial Books for Young Readers, 1999.

Warning: These citations may not always be 100% accurate.