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A Checklist and Distribution Maps of the Amphibians and Reptiles of South Dakota
Lincoln, NE: Transactions of the Nebraska Academy of Sciences 26:29-46.

Higgins, Kenneth F., Tate D. Fischer, Douglas C. Backlund, and David E. Naugle. 1999.
A Field Guide to South Dakota Amphibians
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Over, William H. 1946.
Amphibians and Reptiles of South Dakota
Natural History Studies No. 4. Vermillion, SD: University of South Dakota. 31 pp.