Showing 1 - 2 results of 2 for search 'United States Department of the Interior, Geological Survey,', query time: 0.38s Refine Results
  1. 1
    Mineral resources in Permian rocks of southwest Montana /
    by Swanson, Roger Warren, 1914-
    Published 1970
    “...United States Department of the Interior, Geological Survey,...”
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    Government Document eBook
  2. 2
    Geology and phosphate deposits of the Permian rocks in central western Montana /
    by Swanson, Roger Warren, 1914-
    Published 1973
    “...United States Department of the Interior, Geological Survey,...”
    Get full text
    Government Document eBook
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