Cita APA (7th ed.)

Polak, J. J. (1953). An international economic system. University of Chicago Press.

Cita Chicago (17th ed.)

Polak, Jacques Jacobus. An International Economic System. Chicago: University of Chicago Press, 1953.

Cita MLA (9th ed.)

Polak, Jacques Jacobus. An International Economic System. University of Chicago Press, 1953.