Pilsbry, H. A. & Ferriss, J. H. (1910). Mollusca of the southwestern states: IV. The Chiricahua Mountains, Arizona. Proceedings of the Academy of Natural Sciences of Philadelphia. 62 (1): 44-147, plates 1-14.
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Pilsbry, H. A. & Ferriss, J. H.
1910
Mollusca of the southwestern states: IV. The Chiricahua Mountains, Arizona.
Proceedings of the Academy of Natural Sciences of Philadelphia