TY  - BOOK
AU  - PUNMIA, B. C / JAIN, A. K. / JAIN, A. K.
TI  - ENVIRONMENTAL ENGINEERING -II : WASTE WATER ENGINEERING ( INCLUDING AIR POLLUTION) 
U1  - 627 
PY  - 1996/// R.P.2020
PB  - LAXMI PUBLICATION (P) LTD
KW  - CIVIL
N1  - RBPPL80774/20-21
ER  -