Gaya APA

Elton, E, J., Gruber, M, J. (2014). MODERN PORTPOLIO THEORY AND INVESTMENT ANALYSIS (9th). USA: Wiley.

Gaya MLA

Elton, Edwin, J.., Gruber, Martin, J.. "MODERN PORTPOLIO THEORY AND INVESTMENT ANALYSIS". 9th USA: Wiley, 2014. Text.