Schuh, G. Edward Costs and benefits of agricultural research: the state of the arts / G. Edward Schuh. - Washington, D.C. : World Bank, 1979. - 70 p. : 27 cm. - Wold Bank Staff Working Paper no: 360. . Subjects--Topical Terms: Agriculture and stateTarım ve devlet Dewey Class. No.: 338.1 / SCH 1979