Cita APA (7a ed.)

Wheeler, L., & Ansley, F. (2003). When pigs fly. Atheneum Books for Young Readers.

Cita Chicago Style (17a ed.)

Wheeler, Lisa, y Frank Ansley. When Pigs Fly. New York: Atheneum Books for Young Readers, 2003.

Cita MLA (8a ed.)

Wheeler, Lisa, y Frank Ansley. When Pigs Fly. Atheneum Books for Young Readers, 2003.

Precaución: Estas citas no son 100% exactas.