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  1. 1
    The potential contribution of fertilizers to water pollution /
    by Douglas, Lowell A.
    Published 1976
    Book
  2. 2
    Phosphorus concentrations in the Pamlico River estuary of North Carolina /
    by Hobbie, John E.
    Published 1970
    Book
  3. 3
    Microbial release of soluble phosphate in an activated sludge environment /
    by Randall, Clifford W.
    Published 1971
    Book
  4. 4
    Application of a new method for phosphate concentration measurements in natural and waste waters /
    by Huber, Calvin O.
    Published 1973
    Book
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