Pre-Cambrian rocks of the Lake Superior Region : a review of newly discovered geologic features, with a revised geologic map /

Bibliographic Details
Main Authors: Leith, C. K. (Charles Kenneth), 1875-1956, Leith, Andrew (Author)
Other Authors: Lund, Richard J. (Richard Jacob)
Format: Government Document Book
Language:English
Published: Washington : U.S. Govt. Print. Off, 1935.
Series:Professional paper (Geological Survey (U.S.)) ; 184.
Subjects: