Author: SOLEM, A. & E.L. YOCHELSON
Title: North American Paleozoic land snails, with a summary of other Paleozoic non-marine snails.
Description: 1979, United States Geological Survey, Professional Paper 1072; 42 pp. 6 fig. 10 plts. Orig. wrps. libr. sticker taped to corner of front cover, 4to.

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