TY  - BOOK
AU  - Gray, N.E 
TI  - Water Technology :An Introduction for Environemntal Scientists and Engineers 
SN  - 9789380501796
U1  - 628.1 
PY  - 2006///
CY  - Butterworth, Delhi
PB  - Butterworth, Delhi
KW  -  ﾠWater-supply engineering
ER  -