Fisher, I. (1954). The theory of interest as determined by impatience to spend income and opportunity to invest it. Kelley & Millman.
Cita Chicago (17th ed.)Fisher, Irving. The Theory of Interest as Determined by Impatience to Spend Income and Opportunity to Invest It. New York: Kelley & Millman, 1954.
Cita MLA (9th ed.)Fisher, Irving. The Theory of Interest as Determined by Impatience to Spend Income and Opportunity to Invest It. Kelley & Millman, 1954.
Atenció: Aquestes cites poden no estar 100% correctes.