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You searched for: Creator CW Webbert Remove constraint Creator: CW Webbert 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. River and Creek Coal in Eastern Pennsylvania

    Resource Type: Book
    Creator: C.W. Webbert
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T23:19:36Z