Baban, B. Bernard <br/><br/>
International radio tube encyclopaedia 
Bernard  B.  Baban   
 - 3rd ed 
 - London  Bernards  1959 
 - xxxiv,410p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedia-Radio Tubes<br/>NASA Thesaurus<br/>Radio Electronics<br/>Radio Tubes Encyclopedia
<br/><br/><label>Universal Decimal Class. No.: </label>621.396(031)  / BAB