Roddy, Dennis,  1931- <br/><br/>
Electronic communications / 
Dennis Roddy, John Coolen 
 - 4th ed. 
 - New Delhi :  Prentice-Hall,  c1995 
 - ix, 820 p. :  ill. ;  26 cm. 
<br/><br/><label>ISBN: </label> Rs. 275.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication<br/>Digital communications
<br/><br/><label>Dewey Class. No.: </label>621.38