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  1. 1

    Phosphorus loading to McGrath and Ellis ponds, Kennebec County, Maine / by Nichols, William J.

    Published 1984
    Government Document Book
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  3. 3

    Sediments and sediment-water nutrient interchange in Upper Klamath Lake, Oregon / by Sanville, William

    Published 1974
    Government Document Book
  4. 4

    Factors influencing metal accumulation by algae / by Jennett, J. Charles

    Published 1983
    Government Document Book
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