Books by "Bruce Ronald Colby"
2 books found
Stratigraphic Sections of the Phosphoria Formation in Montana, 1947-48
by A. J. Rosier, Bruce Ronald Colby, Edwin Wallace Lohr, Geological Survey (U.S.). Water Resources Division, Robert Glenn Bates, Robert Morgan Moxham, Arthur Edward Nelson, Donald Quintin Matejka, Helmuth Wedow, David Wellington Hubbell
1949