Elton, Edwin J. <br/><br/>
Modern portfolio theory and investment analysis 

 - 5th ed. 
 - New York  John Wiley & sons  1996 
 - 736p. 
<br/><br/><label>ISBN: </label>9971511436 
<br/><br/><label>Dewey Class. No.: </label>332.632  / ELT;5