The encyclopedia of reptiles and amphibians
"New York: Andromedia Oxford, 1994.",
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The Encyclopaedia of reptiles and insects
editors, Tim Halliday, Kraig Adler, Christopher O'toole
Grolier International, 1993
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Blum, Mark
Amphibians and reptiles in 3-D
Chronicle Books, 1999
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The Encyclopaedia of reptiles and amphibians
editors, Tim Halliday, Kraig Adler
Facts on File, 1994
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Zug, George R.
Herpetology : an introductory biology of amphibians and reptiles
Academic Press, 1993
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