TY  - BOOK
AU  - De, Anil Kumar
AU  - De, Arnab Kumar
TI  - Environmental engineering : (for polytechnic students)
SN  - 9788122424621
U1  - 628 DE 
PY  - 2009///
CY  - New Delhi
PB  - New Age international ( P) Limited, Publishers
KW  - Environmental engineering
N1  - Includes index
ER  -