Hill, W. Ryland.  <br/><br/>
Electronics in Engineering 

 - New York :   McGraw-Hill,   1949. 
 - p. 276 
 - M .
<br/><br/><label>Subjects--Topical Terms: </label><br/>ELECTROTECNIA
<br/><br/><label>Universal Decimal Class. No.: </label>621.31/.39