Elton, E. J. (1991). Modern Portfolio Theory And Ivestmen Analysis Edwin J. Elton And Martin J Gruber. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Elton, Edwin J. Modern Portfolio Theory And Ivestmen Analysis Edwin J. Elton And Martin J Gruber. John Wiley & Sons, 1991.
Lua MLA (8ú heag.)Elton, Edwin J. Modern Portfolio Theory And Ivestmen Analysis Edwin J. Elton And Martin J Gruber. John Wiley & Sons, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.