Nurkse, Ragnar, 1907-1959. Patterns of trade and development / Nurkse, Ragnar, - Oxford : Oxford University Press ; 1961. [Reprent 1962] - 62 p. ; 26 cm. - Wicksell lectures, 1959 . Subjects--Topical Terms: Commerce. Dewey Class. No.: 382 / NUP