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You searched for: Creator George H Ashley Remove constraint Creator: George H Ashley Creator Stanley H Cathcart Remove constraint Creator: Stanley H Cathcart Format pdf (Portable Document Format) Remove constraint Format: pdf (Portable Document Format) Keyword pags progress reports Remove constraint Keyword: pags progress reports Resource Type Book Remove constraint Resource Type: Book
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  1. Gas in the Tioga Region, Pennsylvania

    Resource Type: Book
    Creator: George H. Ashley and Stanley H. Cathcart
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:16Z