Stebbins, R. C. (1966). A field guide to western reptiles and amphibians: Field marks of all species in western North America. Houghton Mifflin.
Cita Chicago Style (17a ed.)Stebbins, Robert C. A Field Guide to Western Reptiles and Amphibians: Field Marks of All Species in Western North America. Boston: Houghton Mifflin, 1966.
Cita MLA (8a ed.)Stebbins, Robert C. A Field Guide to Western Reptiles and Amphibians: Field Marks of All Species in Western North America. Houghton Mifflin, 1966.
Precaución: Estas citas no son 100% exactas.