Thompson, L., & Savage, S. (2013). Polar bear morning. Orchard Books.
Cita Chicago Style (17a ed.)Thompson, Lauren, y Stephen Savage. Polar Bear Morning. New York, N.Y.: Orchard Books, 2013.
Cita MLA (8a ed.)Thompson, Lauren, y Stephen Savage. Polar Bear Morning. Orchard Books, 2013.
Precaución: Estas citas no son 100% exactas.