Thomas , Samuel. Biosphere : a geography of life / Samuel Thomas , K. Siddhartha. - New Delhi : Kisalaya Publications ,2007. - various pagings ;23cm. ISBN: 8187461128 Rs 181.00 Subjects--Topical Terms: BiosphereBiodiversity Dewey Class. No.: 333.95 / T454B Colon Class. No.: G:5