Fisher, I. (1961). Mathematical investigations in the theory of value and price (1892) Appreciation and interest (1896). Kelley.
Chicago-referens (17:e uppl.)Fisher, Irving. Mathematical Investigations in the Theory of Value and Price (1892) Appreciation and Interest (1896). New York: Kelley, 1961.
MLA-referens (9:e uppl.)Fisher, Irving. Mathematical Investigations in the Theory of Value and Price (1892) Appreciation and Interest (1896). Kelley, 1961.
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