Kennedy, George,  1937- <br/><br/>
Electronic communication systems / 
George Kennedy, Bernard Davis. 
 - 4th ed. 
 - Lake Forest, Ill. :  Glencoe,  c1993. 
 - xv, 763 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/>
<br/><br/><label>ISBN: </label>0028005929 (hard cover) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication.
<br/><br/><label>Dewey Class. No.: </label>621.382  / KEE