History of electron tubes / 
edited by S. Okamura. 
 - Amsterdam :  IOS Press,  1994. 
 - 233 p. ;  25 cm. 
<br/><br/><label>ISBN: </label>9051991452  RM238.50 
<br/><br/><label>LCCN: </label>93-080285 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electron tubes.<br/>Semiconductors.