Ellsworth, P. T. (1975). The international economy (5th ed.). Collier Macmillan.
Cita Chicago (17th ed.)Ellsworth, Paul Theodore. The International Economy. 5th ed. London: Collier Macmillan, 1975.
Cita MLA (9th ed.)Ellsworth, Paul Theodore. The International Economy. 5th ed. Collier Macmillan, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.