Dennis Roddy, John Coolen <br/><br/>
Electronic communications 

 - 4th ed 
 - Prentice-Hall of India, New Delhi  2000 
 - ix,820p figs. 
<br/><br/><label>ISBN: </label>81-203-0984-7 
<br/><br/><label>Dewey Class. No.: </label>621.38 Rod/Coo