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  1. 41
    Published 1979
    Subjects “...Water quality management United States Congresses....”
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    Best management practices for agriculture and silviculture : proceedings of the 1978 Cornell Agricultural Waste Management Conference /
  2. 42
    by Hayward, S. A.
    Published 2009
    Subjects “...Water quality management New Zealand Canterbury....”
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    Review of proposed NRRP water quality objectives and standards for rivers and lakes in the Canterbury Region /

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