APA استشهاد

Ingram, J. C. D. M. (1993). International economics (3rd. ed.). John Wiley.

استشهاد بنمط شيكاغو

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

MLA استشهاد

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