ELTON, E. J., & GRUBER, M. J. (1987). Modern portopolio theory and investment analysis.--ed.3. John Wiley.
Chicago-čujuhus (17. p.)ELTON, Edwin J., juo Martin J. GRUBER. Modern Portopolio Theory and Investment Analysis.--ed.3. New York: John Wiley, 1987.
MLA-čujuhus (9. p.)ELTON, Edwin J., juo Martin J. GRUBER. Modern Portopolio Theory and Investment Analysis.--ed.3. John Wiley, 1987.
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