Purdue Agricultural Engineering Dept.
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National Extension Service Water Quality Data Base National
Extension Water Quality Database National Water Quality Database
(Home Page) Water Quality (Home Page)

Address : http://hermes.ecn.purdue.edu:8001/http_dir/agen/start.html
Year    : 1995
Source  : World Wide Web Directory, Jamsa Press 1995
          lycos9510
Tags    : Agriculture

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