Theory of international trade : a dual, general equilibrium approach / A. Dixit,V. Norman by Dixit,A Vinash 1892-1970. Norman, Victor International Trade 382.104 DIT The author's doctoral dissertation, Harvard University, 1922, but not published as a thesis. Includes bibliographical references and index. Cambridge, James Nisbet, 1980. 1980. 1980 Text x,339 p. : eng Harvard economic studies. vol.xxvi Harvard economic studies ; v. 26.