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Eutrophication in lakes and the trophic state index
1981
Kawamura, M. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Higuchi, S.
The Agriculture, Forestry and Fisheries Research Information Technology Center - Japan
Supplemental report under the reference on pollution in the Great Lakes system from land use activities on phosphorus management strategies | Phosphorus management strategies for lakes
1981
National Agricultural Library - United States of America