Pilsbry, H.A. (1948). Land Mollusca of North America (north of Mexico). Volume II Part 2. Monographs - Academy of Natural Sciences of Philadelphia. 3: 521–1113.
111655
Pilsbry, H.A.
1948
Land Mollusca of North America (north of Mexico). Volume II Part 2.
Monographs - Academy of Natural Sciences of Philadelphia