Holtz H <br/><br/>
How to succeed as an independent consultant 
Holtz H; Zahn D 
 - 4 
 - New Jersey  New Jersey, John Wiley  2004 
 - 414p 
<br/><br/><label>ISBN: </label>0-471-46910-6 
<br/><br/><label>Source: </label>Textbook