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You searched for: Creator MN Shaffner Remove constraint Creator: MN Shaffner Format pdf (PDF/A) Remove constraint Format: pdf (PDF/A) Publisher Pennsylvania Bureau Of Topographic And Geologic Survey Remove constraint Publisher: Pennsylvania Bureau Of Topographic And Geologic Survey
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  1. Preliminary report: geology and mineral resources of Donegal Quadrangle, Pennsylvania

    Resource Type: Book
    Creator: M.N. Shaffner
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-18T00:57:33Z
  2. Preliminary report, geology, and mineral resources of the New Florence Quadrangle

    Resource Type: Map or Cartographic Material
    Creator: M.N. Shaffner
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-18T00:56:24Z