TY  - BOOK
AU  - Basak, N. N.
TI  - Environmental engineering
SN  - 0070494630
U1  - 628 BAS 
PY  - 2003///
CY  - New Delhi
PB  - Tata McGraw-Hill pub
KW  - Environmental engineering
KW  - ME
N1  - P.B
ER  -