JENNY,HANS., RAYCHAUDHURI,S.P. EFFECT OF CLIMATE AND CULTIVATION ON NITROGEN AND ORGANIC MATTER RESERVES IN INDIAN SOIL English - - NEW DELHI INDIAN COUNCIL OF AGRICULTURE RESEARCH 1960 - 126 PB ISBN: Source: Subjects--Uniform Titles: Subjects--Topical Terms: SOIL Dewey Class. No.: 631.4 JEN