Gewartowski, J. W. <br/><br/>
Principles of electron tubes :  including grid-controlled tubes, microwave tubes and gas tubes / 
by J.W. Gewartowski & H.A. Watson. 
 - Princeton, NJ :  D. Van Nostrand,  c1965. 
 - xvi, 655 p. 
 - The Bell Telephone Laboratory series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electron tubes.<br/>Electronics.