Walker, W. F. <br/><br/>
Engineering productivity  tools, machines and processes 
W. F. Walker 
 - New York  Chemical Pub.Co  c1964 
 - v,257.  23cm 
<br/><br/><label>ISBN: </label>0064001112 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Production engineering