TY  - GEN
AU  - Haslam,S.M.
TI  - River pollution: an ecological perspective 
SN  - 1-852930-73-x
U1  - 363.739463 20
PY  - 1990///
CY  - London
PB  - Belhaven
KW  - Water
KW  - Pollution
KW  - Measurement
KW  - Water quality bioassay
KW  - Agua
KW  - Contaminación
KW  - Control de calidad
ER  -