Ryen, Thomas P. <br/><br/>
Statistical methods for quality improvement  / 

 - New York:  John Wiley,  1989 
 - xviii, 446p. Index, Tables 
 - Wiley series in Probability and Mathematical Statistics. Applied Probability and Statistics .
<br/><br/><label>Dewey Class. No.: </label>658.568  / R989.SM