TY  - BOOK
AU  - IQBAL,S.A.
AU  - SETHI,M.S.
TI  - ENCYCLOPAEDIA OF NATURE AND ENVIRONMENT
SN  - 81-7141-392-7
U1  - 550 
PY  - 2014///
CY  - New Delhi
PB  - Discovery Publishing House, New Delhi 
ER  -