Search Results for the EPA National Library Catalog

Items Found: 2

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Your Search: (SUBJECT=Eutrophy)

 
 
 

Select Item Title Year Published
An approach to a relative trophic index system for classifying lakes and reservoirs : a preliminary anaysis of National Eutrophication Survey Data collected during the 1972 sampling period. 1974
Water Pollution Investigation: Ashtabula Area. 1975

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