Citazione Stile APA (7a Edizione)

Elton, E. J., & Gruber, M. J. (1981). Modern portfolio theory and investment analysis. John Wiley & Sons.

Citazione stile Chigago Style (17a edizione)

Elton, Edwin J., e Martin Jay Gruber. Modern Portfolio Theory and Investment Analysis. Nueva York: John Wiley & Sons, 1981.

Citatione MLA (9a ed.)

Elton, Edwin J., e Martin Jay Gruber. Modern Portfolio Theory and Investment Analysis. John Wiley & Sons, 1981.