Leonard, A. B. & Franzen, D. S. (1946). A review of the genus Calipyrgula Pilsbry (Gastropoda: Amnicolidae). The University of Kansas Science Bulletin. 31(1): 107-114.
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Leonard, A. B. & Franzen, D. S.
1946
A review of the genus <em>Calipyrgula</em> Pilsbry (Gastropoda: Amnicolidae)