Okes Duke <br/><br/>
Certified quality manager handbook 
Okes Duke; Westcott Russell T. 
 - 2 
 - Wisconsin  Wisconsin, ASQ Quality  2001 
 - 491p 
<br/><br/><label>ISBN: </label>0-87389-487-1 
<br/><br/><label>Source: </label>Textbook