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You searched for: Creator John M Bergsten Remove constraint Creator: John M Bergsten Format pdf (Portable Document Format) Remove constraint Format: pdf (Portable Document Format) Publisher Pennsylvania Bureau Of Topographic And Geologic Survey Remove constraint Publisher: Pennsylvania Bureau Of Topographic And Geologic Survey
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  1. Oil and Gas Developments in Pennsylvania in 1959

    Resource Type: Book
    Creator: William S. Lytle, John M. Bergsten, Addison S. Cate, and Walter R. Wagner
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-18T00:57:39Z
  2. Oil and Gas Developments in Pennsylvania in 1960

    Resource Type: Book
    Creator: William S. Lytle, John M. Bergsten, Addison S. Cate, and Walter R. Wagner
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-18T00:57:24Z
  3. Oil and Gas Developments in Pennsylvania in 1958

    Resource Type: Book
    Creator: Lytle, William S., Bergsten, John M., Cate, Addison S., and Wagner, Walter R.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-18T00:56:57Z
  4. Oil and Gas Developments in Pennsylvania in 1958

    Resource Type: Book
    Creator: William S. Lytle, John M. Bergsten, Addison S. Cate, and Walter R. Wagner
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-18T00:56:45Z