Camble, William ,ed. <br/><br/>
Penroses annual:the process yearbook -vol-xxi 

 - s.l.  s.n.  1916 
 - 112+v 
<br/><br/> Vol-XXI 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Manufacture-periodicals<br/>Technology
<br/><br/><label>Dewey Class. No.: </label>605  / C142p