TY  - BOOK
AU  - Punmia, B C
AU  - Jain, Ashok.
TI  - Environmental engineering2 wastewater engineering
SN  - 9788131805161 
U1  - 628.3 
PY  - 1994///
CY  - Delhi
PB  - Laxmi Pub
KW  - Sanitary municipal engineering
ER  -