TY  - BOOK
AU  - Premazzi, G.
AU  - Chiaudani, G.
TI  - Ecological quality of surface waters : : Quality assessment schemes for European Community lakes
PY  - 1992///
CY  - Luxemburgo : 
PB  - Joint Research Centre. Commission of the European Communities, 
KW  - LAGOS
KW  - ECOLOGIA
ER  -