Showing 1 - 6 results of 6 for search 'Smith, Robert Charles, 1945-', query time: 0.24s Refine Results
  1. 1
    The mineralogy of Pennsylvania, 1966-1975 /

    Book
  2. 2
    Geology and mineralogy of copper-uranium occurrences in the Picture Rocks and Sonestown quadrangles, Lycoming and Sullivan Counties, Pennsylvania /

    Book
  3. 3
    Zinc and lead occurrences in Pennsylvania /

    Book
  4. 4
    Mineral collecting in Pennsylvania /
    Other Authors: “...Smith, Robert Charles, 1945-...”

    Book
  5. 5
    The nonfuel mineral resources of Pennsylvania /
    Other Authors: “...Smith, Robert Charles, 1945-...”

    Government Document Book
  6. 6
    Zinc-lead occurrences near Mapleton, Huntingdon Co., Pennsylvania
    Published 1971
    Other Authors: “...Smith, Robert Charles, 1945-...”

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    Book
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