Paleocene fresh-water mollusks from Southern Montana.

Bibliographic Details
Main Author:	Yen, Teng-Chien
Format:	Government Document Book
Language:	English
Published:	Washington : U.S. Govt. Print. Off, 1951.
Series:	Professional paper (Geological Survey (U.S.)) ; 214-C. Shorter contributions to general geology.
Subjects:	Mollusks > Montana. Gastropoda, Fossil. Paleontology > Cretaceous.

Evans: US Documents (Annex 5th floor)