Keller, Paul A. <br/><br/>
Six sigma demystified / 
by Paul Keller. 
 - 2nd ed. 
 - New York :  McGraw-Hill,  c2011. 
 - xiv, 510 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780071746793 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Six sigma (Quality control standard)
<br/><br/><label>Dewey Class. No.: </label>658.4013  / KEL 2011