Kennedy, George. <br/><br/>
Electronic communication systems 
/ by George Kennedy  
 - 3rd 
 - Singapore  McGraw-Hill International Publishing  1985 
 - xxii, 741p. 
<br/><br/><label>ISBN: </label>007Y663629 
<br/><br/><label>Dewey Class. No.: </label>621.382  / KEN/E