Westphal, Larry E. Research on appropriate technology / [by] Larry E. Westphal. - Washington, D.C. : IBRD, 1978. - 28-46 p. ; 24 cm. - World Bank Reprint series ; no. 88. . Reprinted from Industry and Development, no. 2, 1978, pp. 28-46. Includes bibliographical references. Subjects--Topical Terms: Research.Technology.