Hayek, F. A. v. (1939). Freedom and the economic system. University of Chicago Press.
Lua i Stíl Chicago (17ú heag.)Hayek, Friedrich August von. Freedom and the Economic System. Chicago: University of Chicago Press, 1939.
Lua MLA (9ú heag.)Hayek, Friedrich August von. Freedom and the Economic System. University of Chicago Press, 1939.
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