TY  - BOOK
AU  - Ravera,O
AU  - 
TI  - Biological aspects of freshwater pollution: proceedings of the course held at the Joint Research Center of the Commission of the European Communities, Ispra, Italy, 5-9 June 1978 
SN  - 0080234429
PY  - 1979///
CY  - Oxford
PB  - Published for the Commission of the European Communities by Pergamon
KW  - Water
KW  - Pollution
KW  - Environmental aspects
KW  - Congresses
KW  - Freshwater ecology
KW  - Aquatic animals
KW  - Effect of water pollution on
ER  -