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  1. 561
    Ecological health in the nation's streams, 1993-2005 /
    by Carlisle, Daren M.
    Published 2013
    Subjects: “...Water quality United States. http://id.loc.gov/authorities/subjects/sh85145602...”
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    Government Document eBook
  2. 562
    Contributions to the hydrology of the United States, 1927 /
    Subjects: “...Water quality United States. http://id.loc.gov/authorities/subjects/sh85145602...”
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    Government Document eBook
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