TY  - BOOK
AU  - Sethi, Purnima 
AU  - Kulkarni, V S,
TI  - Environmental pollution and control
SN  - 9789380937090
U1  - 628 
PY  - 2011///
CY  - New Delhi
PB  - Alfa Pubications
KW  - Sanitary & municipal engineering
ER  -