APA استشهاد

Elton, E. J. (1994). Modern portfolio theory and investment analysis4th ed (4th ed.). John Wiley & sons.

استشهاد بنمط شيكاغو

Elton, Edwin J. Modern Portfolio Theory and Investment Analysis4th Ed. 4th ed. Singapore: John Wiley & sons, 1994.

MLA استشهاد

Elton, Edwin J. Modern Portfolio Theory and Investment Analysis4th Ed. 4th ed. John Wiley & sons, 1994.