Ethier, Wilfred J. Study guide for modern international economics / Wilfred J. Ethier - 2nd. ed. - New York : w.w. Norton Company , 1988 - xi, 219p. : ill. ; 26 cm. ISBN: 0393955583 Subjects--Topical Terms: Relaciones económicas internacionales LC Class. No.: HF 1411 / E824 1988