Thompson, L., & Savage, S. (2004). Polar bear night. Scholastic Press.
Cita Chicago (17th ed.)Thompson, Lauren, i Stephen Savage. Polar Bear Night. New York: Scholastic Press, 2004.
Cita MLA (8th ed.)Thompson, Lauren, i Stephen Savage. Polar Bear Night. Scholastic Press, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.