Henney, Keith <br/><br/>
Electron tubes in industry 
by Keith Henney ... 
 - 2d ed. 
 - New York  and London  McGraw-Hill book company, inc.  1937. 
 - viii, 539 p.  illus., diagrs.  24 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>37001515  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vacuum tubes
<br/><br/><label>LC Class. No.: </label>QC544.V3  / H4 1937 
<br/><br/><label>Dewey Class. No.: </label>537.53