Cita APA

Kayser, C., & Kayser, C. (1961). The physiology of natural hibernation. New York, New York: [Pergamon Press].

Citación estilo Chicago

Kayser, Charles, y Charles Kayser. The Physiology of Natural Hibernation. New York, New York: [Pergamon Press], 1961.

Cita MLA

Kayser, Charles, y Charles Kayser. The Physiology of Natural Hibernation. New York, New York: [Pergamon Press], 1961.