Macmillan L.g. <br/><br/>
Options as a strategic investment. 
Macmillan L.g. 
 - 3th 
 - New  New, york Institute of fice  1993 
 - 898p 
<br/><br/><label>ISBN: </label>0-13-636002-5 
<br/><br/><label>Source: </label>Textbook