TY  - BOOK
AU  -  Sethi,  M.S. 
AU  -  Iqbal,  S.A.
TI  - Encyclopaedia of nature and environment
SN  - 8171413927
PY  - 1998///
CY  - New Delhi
PB  -  Discovery, 
KW  - Nature-Encyclopaedia.;Environment- Encyclopaedia
ER  -