APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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