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Showing 1 - 3 results of 3 for search 'Bureau of Topographic and Geologic Survey,', query time: 0.17s Refine Results
  1. 1
    Engineering characteristics of the rocks of Pennsylvania : environmental geology supplement to the state geologic map /
    by Geyer, Alan R.
    Published 1982
    “...Pennsylvania Bureau of Topographic and Geologic Survey,...”
    Book
  2. 2
    Engineering characteristics of the rocks of Pennsylvania ; environmental geology supplement to the State geologic map /
    by McGlade, William G.
    Published 1972
    “...[Commonwealth of Pennsylvania, Bureau of Topographic & Geologic Survey],...”
    Book
  3. 3
    Geology of the Appalachian Trail in Pennsylvania /
    by Wilshusen, John P.
    Published 1983
    “..., Bureau of Topographic and Geologic Survey,...”
    Book
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