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Authors
Author
Robert George Schmidt
Books
Geology of the Elliston Region, Powell and Lewis and Clark Counties, Montana
Geological Survey (U.S.), Robert George Schmidt, J.S. Loen, C.A. Wallace, H.H. Mehnert
Rocks and Mineral Resources of the Wolf Creek Area, Lewis and Clark and Cascade Counties, Montana
David A. Seeland, Evelyn B. Newman, Joseph Haffty, Keith E. Bargar, Robert George Schmidt, Arthur R. Paradis, Leonard Benjamin Riley, Earl E. Brabb, W. D. Goss