Shrader, Robert L. <br/><br/>
Electronic communication / 
Robert L. Shrader. 
 - 6th ed. 
 - Lake Forest, Ill. :  Glencoe, Macmillan,  c1991. 
 - xiii, 713 p. : ill. ; 23 cm. 
<br/><br/><label>ISBN: </label>0071136657 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronics.<br/>Radio.