TY  - BOOK
AU  - Sethi, M         .S          .,
AU  - Iqbal, S. A.,
TI  - Encyclopaedia of nature and environment
SN  - 817141392-7 (Hb.)
AV  - QB 631 S47 2014 REF 
PY  - 2014///
CY  - New Delhi
PB  - Discovery Publishing House
KW  - Earth
KW  - Encyclopedias
ER  -