Citazione APA

Elton,Edwin J, & Gruber,Martin J. (1994). Modern portfolio theory and investment analysis (4th ed.). John Wiley & Sons.

Stile di citazione Chicago

Elton,Edwin J, e Gruber,Martin J. Modern Portfolio Theory and Investment Analysis. 4th ed. New York: John Wiley & Sons, 1994.

Citazione MLA

Elton,Edwin J, e Gruber,Martin J. Modern Portfolio Theory and Investment Analysis. 4th ed. John Wiley & Sons, 1994.