TY  - BOOK
AU  - Narayanan, P.
TI  - Environmental pollution : principles, analysis and control
SN  - 9788123914510
U1  - 363.73 
PY  - 2009///
CY  - New Delhi
PB  - CBS Publishers
KW  - Civil engineering
N1  - Includes index; N. E. Book, Silchar
ER  -