Behler, J. L., & King, F. W. (1997). The National Audubon Society field guide to North American reptiles and amphibians. Knopf : Distributed by Random House.
Cita Chicago Style (17a ed.)Behler, John L., y F. Wayne King. The National Audubon Society Field Guide to North American Reptiles and Amphibians. New York: Knopf : Distributed by Random House, 1997.
Cita MLA (8a ed.)Behler, John L., y F. Wayne King. The National Audubon Society Field Guide to North American Reptiles and Amphibians. Knopf : Distributed by Random House, 1997.
Precaución: Estas citas no son 100% exactas.