TY  - BOOK
AU  - Chhatwal G R
TI  - Encyclopedic dictionery of environment. 4V
U1  - "U:(G:55).k, M8.1-M8.4/RR" 
PY  - 1988///
CY  - New
PB  - Delhi Anmol      
KW  - Geography Irt Technology
ER  -