The Role of agriculture in economic development; a conference of the Universities-National Bureau Committee for Economic Research. Erik Thorbecke, editor. Thorbecke, Erik, 1929- ed. Universities-National Bureau Committee for Economic Research. National Bureau of Economic Research. Agriculture Economic aspects Congresses. Economic development Congresses. HD1405 .R6 338.1 THO Includes bibliographical references. New York, National Bureau of Economic Research; distributed by Columbia University Press, 1969. 1969. 1969 Text x, 480 p. eng Universities-National Bureau conference series, 21