Cita APA (7th ed.)
Gray, H. P. (1987). International economic problems and policies. ST. Martins Press.
Cita Chicago (17th ed.)
Gray, H. Peter. International Economic Problems and Policies. New York: ST. Martins Press, 1987.
Cita MLA (9th ed.)
Gray, H. Peter. International Economic Problems and Policies. ST. Martins Press, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.