The Montana lobe of the Keewatin ice sheet : by Fred. H. H. Calhoun.

Bibliographic Details

Main Author:	Calhoun, F. H. H. (Fred Harvey Hall), 1873-1959
Format:	Book
Language:	English
Published:	Washington : Gov't. print. off, 1906.
Series:	U.S. Geological Survey professional paper ; 50.
Subjects:	Glacial epoch.