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You searched for: Keyword May 5, 1923 Remove constraint Keyword: May 5, 1923 Resource Type Book Remove constraint Resource Type: Book
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  1. Gold in Pennsylvania

    Resource Type: Book
    Creator: J. Ross Corbin
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:58Z
  2. Calcareous Marl in Pennsylvania South of the Terminal Moraine

    Resource Type: Book
    Creator: J. B. R. Dickey
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:57Z
  3. Proceedings of the Third Pennsylvania Mineral Industries Conference, Petroleum and Natural Gas Section, held at The Pennsylvania State College, May 5-6, 1933

    Resource Type: Book
    Creator: Edward Steidle
    Keyword: Mineral Industries Experiment Station Bulletin
    Publisher: Pennsylvania State University
    Object Type: GenericWork
    Date Uploaded: 2014-09-04T20:09:44Z
  4. Bulletin 18

    Resource Type: Book
    Creator: D.F. McFarland
    Keyword: Mineral Industries Experiment Station Bulletin
    Publisher: Pennsylvania State University
    Object Type: GenericWork
    Date Uploaded: 2014-09-04T20:09:56Z