TY  - BOOK
AU  - Chhatwal G R Ed.
TI  - ECYCLOPEDIA OF environmental pollution and its con
U1  - U:(G:55)K, M9.1-6/RR 
PY  - 1989///
CY  -  New Delhi 
PB  - Anmol India        
KW  - Geography- Environment
ER  -