APA استشهاد

Elton, E. J. G. (1994). Modern portfolio theory and investment analysis (4 edition.).

استشهاد بنمط شيكاغو

Elton, Edwin J; Gruber. Modern Portfolio Theory and Investment Analysis. 4 edition. John Wiley & Sons: New York, 1994.

MLA استشهاد

Elton, Edwin J; Gruber. Modern Portfolio Theory and Investment Analysis. 4 edition. 1994.