Challa O and others Soil series of Maharashtra Challa O and others - Nagpur NBSS & LUP India 1999 - 429p cm. - National Bureau of Soil Survey Publiction; 79. Maharashtra, Agriculture (Department of...) . ISBN: 8185460558 Source: General Book Subjects--Topical Terms: SoilAgricultural Geography Dewey Class. No.: U672(J:1).235.N9, N9