Roddy, Dennis <br/><br/>
Electronic communications 
Dennis Roddy 
 - Fourth Edition 
<br/><br/><label>ISBN: </label>013312083X 9788177585582 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication--MIS
<br/><br/><label>Dewey Class. No.: </label>621.38 ROD