TY  - BOOK
AU  - Punmia,B.C.
AU  - Jain,Ashok Kumar
AU  - Jain,Arun Kumar
TI  - Waste water engineering: (including air pollution) 
T2  - Environmental engineering
SN  - 9788131805961
PY  - 1998///
CY  - New Delhi
PB  - Laxmi Publications (P) Ltd.
KW  - Environmental engineering
KW  - Sewage
ER  -