Elton, E. J., & Gruber, M. J. (1981). Modern portfolio theory and investment analysis (5th edition.). New York: John Wiley & Sons, Inc.
Chicago Style CitationElton, Edwin J., and Martin J. Gruber. Modern Portfolio Theory and Investment Analysis. 5th edition. New York: John Wiley & Sons, Inc, 1981.
MLA CitationElton, Edwin J., and Martin J. Gruber. Modern Portfolio Theory and Investment Analysis. 5th edition. New York: John Wiley & Sons, Inc, 1981.
Warning: These citations may not always be 100% accurate.