Reptiles & Amphibains in 2000

Amphibians and Reptiles in Colorado, Second Edition by Hammerson, Geoffrey A.

The Biology of Plethodontid Salamanders by

A Field Guide to the Amphibians and Reptiles of the Maya World: The Immigrants Return to Europe, 1880-1930 by Lee, Julian C.

Amphibians and Reptiles of Alberta (New) by Russell, A. P., Bauer, Aaron M.