00298nam a2200109 a 450000500170000008200130001710000240003024500510005426000320010530000230013763000280016020251203091155.0  a337bSAL  aSalvatore, Dominick  aTheory and problems of international economics  aNew YorkbMcGraw-Hillc1987  a231 p.b22 cm.cPB  aInternational economics