Harvey, Arthur Frank. <br/><br/>
High frequency thermionic tubes, 
by A. F. Harvey, with a foreword by E. B. Moullin. 
 - New York :   John Wiley & Sons Inc,   1943. 
 - viii, 235 p.  illus., diagrs.  22 cm. 
<br/><br/><label>LCCN: </label>43010850  
<br/><br/><label>Subjects--Topical Terms: </label><br/>TUBOS AL VACÍO