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General 



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Barker, Will. 1964. Familiar reptiles and amphibians of America. Harper Row, 

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Behler, J.L. and F.W. King. 1979. The Audubon Society field guide to North 

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Boulenger, G.A. 1920. A monograph of the American frogs of the genus Rana . 

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Cochran, Doris M. 1932. Our friend the frog. Nat'l. Geographic Mag. 61 (5) :628-654. 



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Cochran, Doris M. and Coleman J. Goin. 1970. The new field book of reptiles and 

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