David F R <br/><br/>
Concepts of strategic management 
David F R 
 - Ed 5th 
 - Englewood  Englewood, Prentice-Hall  1995 
 - 417p 
<br/><br/><label>ISBN: </label>0-02-327868-4 
<br/><br/><label>Source: </label>Textbook