Search Results for the EPA National Library Catalog

Items Found: 24

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Select Item Title Year Published
Ecoregions of Tennessee 1999
Ecoregions of Tennessee / 1977
Ecoregions of the conterminous United States / 1986
Ecoregions of the northeast states / 1987
Ecoregions of the Pacific Northwest / 1986
Ecoregions of the south central states / 1987
Ecoregions of the southeastern states / 1987
Ecoregions of the southwest states / 1987
Ecoregions of the Upper Midwest States / 1988
Ecoregions of the west central United States / 1987
Florida regionalization project 1994
Lake eutrophication : results from the national eutrophication survey / 1975
Nonpoint source -- stream nutrient level relationships : a nationwide study / 1977
Nonpoint source -- stream nutrient level relationships : a nationwide study. Supplement 1- / 1979
Nutrient concentrations in streams from nonpoint sources 1977
Nutrient concentrations in streams from nonpoint sources : [United States] / 1977
Summer total phosphorus in lakes : a map of Minnesota, Wisconsin, and Michigan, USA / 1988
Summer total phosphorus in lakes in Minnesota, Wisconsin, and Michigan / 1988
The Influence of land use on stream nutrient levels / 1976
Total alkalinity of surface waters : a map of the upper Midwest region / 1985
Total alkalinity of surface waters : a map of the western region / 1986
Total alkalinity of surface waters : New England and New York Region / 1985
Total alkalinity of surface waters : [United States] / 1982
Use and Misuse of the Terms Watershed and Stream Order. 1981

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