TY  - BOOK
AU  - Downes,Barbara J.
TI  - Monitoring ecological impacts: concepts and practice in flowing waters 
SN  - 0521771579
AV  - QH96.8 M744 2002
PY  - 2002///
CY  - Cambridge, UK, New York, NY, USA
PB  - Cambridge University Press
KW  - Water quality biological assessment
KW  - Stream ecology
N1  - HKBU library; YT2025 M10
ER  -