The Amphibians and Reptiles of El Salvador
Kohler, Gunther; Milan Vesely; Eli Greenbaum
McCranie, James R.; Joshia H. Townsend; Larry David Wilson
A Guide to the Rock Rattlesnakes of Mexico
Price Michael S.
A Guide to the Rock Rattlesnakes of the United States
Amphibians and Reptiles of Northern Guatemala, the Yucatan, and Belize
Campbell, Jonathan A.
Biennial Report of the Commissioner of Fisheries and Game for Indiana 1905-1906
Sweeney, L.T. [Commissioner]
Aposematic Poison Frogs [Dendrobatidae] of the Andean Countries: Bolivia, Colombia, Ecuador, Peru an
Kahn, Ted R. et al [Editors]
Kingsnakes and Milk Snakes
Markel, Ronald G.
Snakes: The Evolution of Mystery in Nature
Greene, Harry W.
Venemous Reptiles of the United States, Canada, and Northern Mexico. Volume 2
Ernst, Carl H. and Evelyn M. Ernst
Venemous Reptiles of the United States, Canada, and Northern Mexico. Volume 1.
The Venomous Reptiles of Latin America
Campbell, Jonathan A. & William W. Lamar