Cita APA (7a ed.)

Thompson, L., & Savage, S. (2004). Polar bear night. Scholastic Press.

Cita Chicago Style (17a ed.)

Thompson, Lauren, y Stephen Savage. Polar Bear Night. New York: Scholastic Press, 2004.

Cita MLA (8a ed.)

Thompson, Lauren, y Stephen Savage. Polar Bear Night. Scholastic Press, 2004.