TY  - BOOK
AU  - GUPTA, OM PRAKASH
TI  - ELEMENTS OF WATER POLLUTION CONTROL ENGINEERING
SN  - 9789386173225
U1  - 628.3 
PY  - 2019///
CY  - DELHI
PB  - KHANNA BOOK PUBLISHING CO. P. LTD
KW  - ENVIRONMENT
ER  -