SYMPOSIUM on biological aspects of freshwater pollution (Italy: 1978)
Biological aspects of freshwater pollution /organized by Commission of the European Communities, proceedings of the course held at the joint research center of the Commission of the European Communities, Ispra, Italy, 5-9 June 1978 , edited by O.Ravera, - taOxford Pergamon Press 1979 - ix, 214 p.
80234429
574.929 / SYM
Biological aspects of freshwater pollution /organized by Commission of the European Communities, proceedings of the course held at the joint research center of the Commission of the European Communities, Ispra, Italy, 5-9 June 1978 , edited by O.Ravera, - taOxford Pergamon Press 1979 - ix, 214 p.
80234429
574.929 / SYM