APA استشهاد

Ellsworth, P. T., & Leith, C. J. (1975). International Economy (5th ed.). Macmillan.

استشهاد بنمط شيكاغو

Ellsworth, P T., و Clark J. Leith. International Economy. 5th ed. New York: Macmillan, 1975.

MLA استشهاد

Ellsworth, P T., و Clark J. Leith. International Economy. 5th ed. Macmillan, 1975.