TY  - BOOK
AU  - Punmia, B. C.
TI  - Wastewater Engineering
SN  - 9788131805961
U1  - 628.3 
PY  - 2017///
CY  - India
PB  - Laxmi
KW  - Jain, ashok Kumar Jain, Arun Kumar
ER  -