Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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

Precaución: Estas citas no son 100% exactas.