Roddy, Dennis <br/><br/>
Electronic communications  [Book]. 
Dennis Roddy, John Coolen 
 - Fourth edition. 
 - New Delhi :  Pearson Education,  c2008. 
 - xi, 723 Pages :  24 cm. 
<br/><br/> Includes index. 
<br/><br/> All. 
<br/><br/><label>ISBN: </label>9788177585582 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication.<br/>Electronic communications--engineering.<br/>Electrical engineering.
<br/><br/><label>Dewey Class. No.: </label>621.382