Knight, F. H. (1971). Risk, uncertainty and profit ([1st ed. reprinted] with an introduction by George J. Stigler.). University of Chicago Press.
Cita Chicago (17th ed.)Knight, Frank H. Risk, Uncertainty and Profit. [1st ed. reprinted] with an introduction by George J. Stigler. Chicago: University of Chicago Press, 1971.
Cita MLA (8th ed.)Knight, Frank H. Risk, Uncertainty and Profit. [1st ed. reprinted] with an introduction by George J. Stigler. University of Chicago Press, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.