Keller, Paul A. <br/><br/>
Six Sigma demystified / 
Paul Keller 
 - New York :  McGraw-Hill,  2005 
 - xiv, 480 p. :  ill. ;  24 cm. 
<br/><br/> 'A self-teaching guide'--Cover 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0071445447  RM80.20 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Six Sigma (Quality control standard)