00920nam--2200349---450-99000278724020331620060721142950.00134739183000278724USA01000278724(ALEPH)000278724USA0100027872420060721d1973----km-y0itay0103----baengUS||||||||001yyInternational tradetheory and empirical evidenceH. Robert Heller2. edEnglewoodPrentice-Hallc1973XIV, 236 p.24 cm20012001001-------2001HELLER,Robert H.2451ITsalbcISBD990002787240203316P08 516DISTRABKDISTRADISTRA21020060721USA011429International trade996368UNISA