APA (7th ed.) Citation

Elton, E. J., & Gruber, M. J. (1987). Modern portfolio theory and investment analysis (3. ed.). Wiley.

Chicago Style (17th ed.) Citation

Elton, Edwin J., and Martin Jay Gruber. Modern Portfolio Theory and Investment Analysis. 3. ed. New York [u.a.]: Wiley, 1987.

MLA (9th ed.) Citation

Elton, Edwin J., and Martin Jay Gruber. Modern Portfolio Theory and Investment Analysis. 3. ed. Wiley, 1987.