Shrader, Robert .L. <br/><br/>
Electronic communication 

 - 6th ed. 
 - Illinois  Mc Graw Hill  1993 
 - 713p. 
<br/><br/><label>ISBN: </label>0-07-113665-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>621.39--Electronics--Radio