Ingram, J. C. (1966). International economic problems. J. Wiley.
Cita Chicago (17th ed.)Ingram, James C. International Economic Problems. New York: J. Wiley, 1966.
Cita MLA (8th ed.)Ingram, James C. International Economic Problems. J. Wiley, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.