TY  - BOOK
AU  - Chhatwal, G. R.
TI  - Encyclopaedia of environmental analysis
SN  - 8174884378
U1  - 333.703 
PY  - 1997///
CY  - New Delhi
PB  - Anmol
KW  - Encyclopaedia
KW  - Environment-encyclopaedia
ER  -