Clench, W. J. (1957). A catalogue of the Cerionidae (Mollusca - Pulmonata). Bulletin of the Museum of Comparative Zoology, Harvard University. 116(2): 121-169 (April).
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Clench, W. J.
1957
A catalogue of the Cerionidae (Mollusca - Pulmonata)
Bulletin of the Museum of Comparative Zoology, Harvard University