Gaya APA

Elton, E, J., Gruber, M, J. (1976). Modern Portofolio Theory And Investment Analysis . New York: John Wiley and Sons, Inc..

Gaya MLA

Elton, Edwin, J., Gruber, Martin, J. "Modern Portofolio Theory And Investment Analysis". New York: John Wiley and Sons, Inc., 1976. Text.