Branson, B. A. (1964). The Recent Gastropoda of Oklahoma, VI. Terrestrial families, Endodontidae and Haplotrematidae. Proceedings of the Oklahoma Academy of Science. 44: 25-41.
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Branson, B. A.
1964
The Recent Gastropoda of Oklahoma, VI. Terrestrial families, Endodontidae and Haplotrematidae.