Gregg, W. O.; Miller, W. B. (1974). Two new species of land snails from the Pinaleno Mountains, Arizona. Bulletin of Southern California Academy of Sciences. 73(3): 146-151.
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Gregg, W. O.; Miller, W. B.
1974
Two new species of land snails from the Pinaleno Mountains, Arizona.
Bulletin of Southern California Academy of Sciences