Sachs, William S.,  1919-2010. <br/><br/>
Product planning and management / 
William S. Sachs, George Benson. 
 - Tulsa, Okla. :  PennWell Books,  c1981. 
 - xviii, 428 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0878141499 
<br/><br/><label>LCCN: </label>80025648  
<br/><br/><label>LC Class. No.: </label>HF5415.15 .S22  / .S22 
<br/><br/><label>Dewey Class. No.: </label>658.5