TY  - BOOK
AU  - Punmia, B. C ...[et al.].
AU  - Jain, Arun K.
AU  - Jain, Ashok K.
TI  - Environmental engineering: waste water engineering 
SN  - NA
U1  - 628.2 22
PY  - 2005///
PB  - Laxmi Publications
ER  -