TY  - BOOK
AU  - ELANGOVAN R
TI  - UNIT OPERATIONS IN ENVIRONMENTAL ENGINEERING 
SN  - 81-224-1097-9
U1  - 628 N97 ELA/SAS(660.2842) 
PY  - 2008///
CY  - NEW DELHI
PB  - NEW AGE INTERNATIONAL
ER  -