Dyfyniad APA

Ingram, J. C., & Dunn, R. M. (1993). International economics /3e (3rd ed.). John Wiley.

Dyfyniad Arddull Chicago

Ingram, James C., and Robert M. Dunn. International Economics /3e. 3rd ed. New York: John Wiley, 1993.

Dyfyniad MLA

Ingram, James C., and Robert M. Dunn. International Economics /3e. 3rd ed. John Wiley, 1993.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.