Mipun, B.S. Immigrants and the agricultural changes in the lower Brahmaputra Valley : A case study of Darrang district - North-Eastern Hill University 1987 - 225p. + C D - 48 Subjects--Topical Terms: AGRICULTURAL GEOGRAPHY - ASSAM - DARRANG DISTRICTEMIGRATION AND IMMIGRATION - ASSAM Dewey Class. No.: TM.0024