TY  - BOOK
AU  - Viessman, Warren.
TI  - Water supply and pollution control
SN  - 8129711540
PY  - 2005///
CY  - Delhi : 
PB  - Pearson Education
KW  - Water --Pollution
KW  - Water --Supply.
KW  - Water Pollution --Prevention & control.
ER  -