Cita APA (7th ed.)
Appleyard, D. R. (1995). International economics (3rd ed.). HarperCollins.
Cita Chicago (17th ed.)
Appleyard, Dennis R. International Economics. 3rd ed. New York: HarperCollins, 1995.
Cita MLA (9th ed.)
Appleyard, Dennis R. International Economics. 3rd ed. HarperCollins, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.