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  1. 1
    A guide to obtaining information from the USGS, 1979 /
    by Clarke, Paul F.
    Published 1979
    Subjects: “...Hydrology United States Information services....”
    Government Document Book
  2. 2
    A guide to obtaining information from the USGS /
    Published 1978
    Subjects: “...Hydrology United States Information services Periodicals....”
    Get full text
    Government Document eBook
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