Koller, Lewis R. <br/><br/>
The physics of electron tubes /  
L. R. Koller ... 
 - 2d ed. 
 - New York :   London :   McGraw-Hill Book Company, inc.,  1937. 
 - xvii, 234 p.  illus., diagrs.  24 cm. 
 - International series in physics .
<br/><br/><label>Subjects--Topical Terms: </label><br/>TUBOS AL VACÍO
<br/><br/><label>Universal Decimal Class. No.: </label>537.53