Communication electronics for electrician 
Temes, Lloyd. 
 -  McGraw-Hill  Inc.  1974 
 - 318 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>0-07-063487-4 
<br/><br/><label>Dewey Class. No.: </label>621.38 Te4c 1974