British special quality valves and electron tube devices data annual 1964-65 / 
edited by Geoffrey William Arnold Dummer [and] J. Mackenzie Robertson 
 - Oxford :  Pergamon Press,  1964 
 - xix, 1391 p.. :  ill. ;  27 cm. 
<br/><br/><label>ISBN: </label> Rs. 200.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electron tubes--Yearbooks<br/>Miniature electronic equipment--Yearbooks
<br/><br/><label>Dewey Class. No.: </label>621.3137