Ray , Siddheswar . Technological development of agriculture in West Bengal since independence / Siddheswar Ray. - Kolkata : Firma K L M , 1992. - xiii, 206p. : Tables ; 18cm . Include bibliography ISBN: Rs. 150.00 (Hb) Subjects--Index Terms: ECONOMICS AGRICULTURE-WEST BENGAL Dewey Class. No.: 338.16009414 / RAY/T