Elton, E. J. (1991). Modern Portfolio Theory And Ivestmen Analysis Edwin J. Elton And Martin J Gruber. John Wiley & Sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रElton, Edwin J. Modern Portfolio Theory And Ivestmen Analysis Edwin J. Elton And Martin J Gruber. John Wiley & Sons, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रElton, Edwin J. Modern Portfolio Theory And Ivestmen Analysis Edwin J. Elton And Martin J Gruber. John Wiley & Sons, 1991.
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