North American Paleozoic land snails, with a summary of other Paleozoic nonmarine snails.  by G.A. Solem and E.L. Yochelson.
Contributors: Yochelson, E.L.
Publisher: U.S.  Dept. of the Interior
Place of publication: Washington
Language: eng
Number of pages: 42
Subjects: Gastropoda, Fossil; Paleontology - Paleozoic
Notes: 11