Dummer, G. W. A. <br/><br/>
Electronic inventions and discoveries/ 
G. W. A. Dummer 
 - 2nd ed. 
 - New York :  Perfamon Press  1978 
<br/><br/><label>ISBN: </label>0080227309, 008023223X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic Apparatus and Appliances<br/>Electronic inventions
<br/><br/><label>Dewey Class. No.: </label>621.401  / DUM