TY  - BOOK
AU  - Kownacki,Andrzej
TI  - River Biomonitoring and Benthic Invertebrate Communities: (Monograph) 
SN  - 8385444904
PY  - 2002///
CY  - Warszawa, Kraków
PB  - Institute of Environmental Protection
N1  - bibliogr
ER  -