APA aipamena

ELTON, E. J., GRUBER, M. J., BROWN, S. J., & GOETZMANN, W. N. (2007). Modern portfolio theory and investment analysis (Ed.7.). John Wiley and Sons.

Chicago Style aipamena

ELTON, Edwin J., Martin J. GRUBER, Stephen J. BROWN, and William N. GOETZMANN. Modern Portfolio Theory and Investment Analysis. Ed.7. New Jersey: John Wiley and Sons, 2007.

MLA aipamena

ELTON, Edwin J., et al. Modern Portfolio Theory and Investment Analysis. Ed.7. John Wiley and Sons, 2007.