Showing 1 - 3 results of 3 for search '"United States."', query time: 0.11s Refine Results
  1. 1
    Sedimentary phosphate resource classification system of the U.S. Bureau of Mines and the U.S. Geological Survey.
    Published 1982
    Subjects: “...Sediments (Geology) United States Classification....”
    Government Document Book
  2. 2
    Wilderness mineral potential : assessment of mineral-resource potential in U.S. Forest Service lands studied, 1964-1984 /
    Published 1984
    Subjects: “...Mines and mineral resources United States....”
    Government Document Book
  3. 3
    Principles of a resource/reserve classification for minerals /
    Published 1980
    Subjects: “...Mines and mineral resources United States Classification....”
    Government Document Book
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