TY  - BOOK
AU  - Rao, M.N and Datta, A.K 
TI  - Waste water treatment 
SN  - 9788120417120
U1  - 628.1 RAO  
PY  - 2017///
CY  - CBS publishers and distributors 
PB  - New delhi 
KW  - Waste Water engineering
ER  -