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1
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2Published 1993Subjects: “...National Water-Quality Laboratory (U.S.) Periodicals....”
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3Published 2002Subjects: “...National Water-Quality Laboratory (U.S.) Periodicals....”
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4Published 1964Subjects: “...Water quality management United States Periodicals....”
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5Published 1989Subjects: “...Water quality management Periodicals. http://id.loc.gov/authorities/subjects/sh2010118300...”
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6
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7Published 1980Subjects: “...Water quality management United States Periodicals....”
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8Published 1983Subjects: “...Water quality management United States Periodicals....”
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9
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10
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11Published 2006Subjects: “...Water quality United States Periodicals....”
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12Published 1984Subjects: “...Water quality management United States Periodicals....”
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13
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14
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Government Document Journal