Search Results : EPA National Library Catalog

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  1 Methods for measuring the acute toxicity of effluents and receiving waters to freshwater and marine organisms / 1993
  2 Methods for measuring the acute toxicity of effluents and receiving waters to freshwater and marine organisms / 1991
  3 Methods for measuring the acute toxicity of effluents and receiving waters to freshwater and marine organisms microform / 1991
  4 Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms : project summary / 1990
  5 Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms / 1989
  6 Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms microform / 1989
  7 Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms supplement, {microform} / 1989
  8 Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms. Supplement / 1989
  9 Methods for use of caged molluscs for in-situ biomonitoring of marine discharges 1988
  10 Short-term methods for estimating the chronic toxicity of effluent and receiving waters to marine and estuarine organisms 1988
  11 Short-term methods for estimating the chronic toxicity of effluent and receiving waters to marine and estuarine organisms / 1988
  12 Review of methods for the analysis of chlorophyll in periphyton and plankton of marine and freshwater systems 1986
  13 Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisims Project Summary 1986
  14 Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms / 1986
  15 Methods for measuring the acute toxicity of effluents to freshwater and marine organisms / 1985
  16 Methods for measuring the acute toxicity of effluents to freshwater and marine organisms {microform} / 1985
  17 Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms / 1985
  18 Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms {microform} / 1985
  19 Method for use of caged molluscs for in situ biomonitoring of marine sewage discharges / 1983
  20 Method for use of caged molluscs for in situ biomonitoring of marine discharges. 1982
  21 Ecological assessments of effluent impacts on communities of indigenous aquatic organisms : a symposium / 1981
  22 Biological field and laboratory methods for measuring the quality of surface waters and effluents 1980
  23 Biological field and laboratory methods for measuring the quality of surface waters and effluents 1973
  24 Biological field and laboratory methods for measuring the quality of surface waters and effluents 1973
  25 Biological field and laboratory methods for measuring the quality of surface waters and effluents / 1973
  26 A guide to the common diatoms at water pollution surveillance system stations. 1971
  27 Methods of collection and analysis of plankton and periphyton samples in the water pollution surveillance system / 1970
  28 Use of a floating periphyton sampler for water pollution surveillance / 1970
  29 Periphyton biomass-chlorophyll ratio as an index of water quality / 1969
  30 An Illustrated manual for introductory work in diatom identification / 1965

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