Ortega B <br/><br/>
In sam we trust: The untold story of sam walton --- the world 
Ortega B 
 - London  London, Kogan Page Ltd.  1999 
 - 413p 
<br/><br/><label>ISBN: </label>0-7494-3177-6 
<br/><br/><label>Source: </label>Textbook