Cita APA

Hanna, J., & Boatwright, P. (2004). A horse called Sky. Boston: Houghton Mifflin.

Citación estilo Chicago

Hanna, Julia, y Phil Boatwright. A Horse Called Sky. Boston: Houghton Mifflin, 2004.

Cita MLA

Hanna, Julia, y Phil Boatwright. A Horse Called Sky. Boston: Houghton Mifflin, 2004.