Mehta, V.K. Mehta, Shalu <br/><br/>
Principles of Electronics 

 - New Delhi  S. Chand Publishing  2002 
 - p.585 
<br/><br/><label>ISBN: </label>978812917230 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vaccum Tubes<br/>Electron Emission
<br/><br/><label>Dewey Class. No.: </label>621.381 M498P