Kennedy, George <br/><br/>
Electronic communication systems / 
George Kennedy, Bernard Davis. 
 - 4th ed. 
 - Lake Forest, Ill. :  Glencoe,  c1993. 
 - xv, 763p. : ill. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9710856189 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication.