TY  - BOOK
AU  - Narayanan, P.
TI  - Environmental pollution: principles, analysis and control 
SN  - 8123914512
U1  - 363.73 NAR-E E.SCI. 23867Sc 
CY  - New Delhi
PB  - Cbs
KW  - Pollution, Environmental protection
KW  - Environmental protection
ER  -