Appleyard, D. R. International Eeconomics (8th ed.). MGH.
Cita Chicago (17th ed.)Appleyard, Dennis R. International Eeconomics. 8th ed. MGH.
Cita MLA (9th ed.)Appleyard, Dennis R. International Eeconomics. 8th ed. MGH.
Atenció: Aquestes cites poden no estar 100% correctes.