Showing 1 - 2 results of 2 for search '"Geological Survey circular ;"', query time: 0.79s Refine Results
  1. 1
    Mineral-resource appraisal of the Rolla 1° x 2° quadrangle, Missouri, as of September 1980 : a nontechnical summary /
    by Pratt, Walden P.
    Published 1983
    “...Geological Survey circular ;...”
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    Government Document eBook
  2. 2
    The Conterminous United States Mineral-Resource Assessment Program : background information to accompany folio of geologic and mineral-resource maps of the Rolla 1° x 2° quadrangle, Missouri /
    by Pratt, Walden P.
    Published 1991
    “...U.S. Geological Survey circular ;...”
    Get full text
    Government Document eBook
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