ELTON, E. J., & GRUBER, M. J. (1995). Modern portfolio theory and investment analysis.-- ed.5. John Wiley and Sons.
Lua i Stíl Chicago (17ú heag.)ELTON, Edwin J., agus Martin J. GRUBER. Modern Portfolio Theory and Investment Analysis.-- Ed.5. New York: John Wiley and Sons, 1995.
Lua MLA (9ú heag.)ELTON, Edwin J., agus Martin J. GRUBER. Modern Portfolio Theory and Investment Analysis.-- Ed.5. John Wiley and Sons, 1995.
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