Paleocene fresh-water mollusks from southern Montana
By: by Teng-Chien Yen.
Series: Geological Survey professional paper -- 214-C; Shorter contributions to general geology
Publisher: U.S. Govt. Print. Off.
Published: 1948
Place of publication: Washington
Language: eng
Number of pages: 50
Subjects: Mollusks, Fossil -- Montana.; Gastropoda, Fossil -- Montana.; Paleontology -- Montana -- Paleocene.
Notes: Includes index.

Bibliography: p. 44.