Cita APA (7th ed.)
Ingram, J. C., & Dunn, R. M. (1993). International economics (3rd. ed.). John Wiley & Sons.
Cita Chicago (17th ed.)
Ingram, James C., i Robert M. Dunn. International Economics. 3rd. ed. New York: John Wiley & Sons, 1993.
Cita MLA (9th ed.)
Ingram, James C., i Robert M. Dunn. International Economics. 3rd. ed. John Wiley & Sons, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.