TY  - GEN
AU  - Water quality assessment
AU  - Deborah Chapman
TI  - Water quality assessment: A guide to the use of biota, sediments and water environmental monitoring
SN  - 0-203-47671-9
U1  - RES 628.161 WAT 
PY  - 2003///
CY  - London
PB  - E&FN SPON
N1  - Includes references and index
ER  -