Van Velzer, Harry Leland. <br/><br/>
Physics and chemistry of electronic technology / 
Harry Leland, Van Velzer 
 - New York :  McGraw-Hill,  c1962 
 - 372 p. :  illus. ;  24 cm. 
<br/><br/>Includes bibliography and Index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electron tubes.
<br/><br/><label>Dewey Class. No.: </label>621.38151  / VAP 1962