Impact of education on some backward communities of West Bengal : : study based on West Dinajpur / Dulal Chandra Bag. Bag, Dulal Chandra. Education India Bengal. 307.72095414 BAI 307.72095414 19 BAI Revision of the authorʾs thesis (Ph. D.--University of Calcutta, 1977) Includes index. Bibliography: p. [293]-300. Calcutta : OPS Publishers, 1984. 1984. 1984 Text 304 p., [3] leaves of plates : eng India Bengal.