Roddy, Dennis  1931- <br/><br/>
Electronic communications /  [text] 
[by] Dennis Roddy, John Coolen 
 - Fourth edition 
 - ix, 820 pages :  illustrations ;  26 cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>9788129701060  $520.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication.
<br/><br/><label>LC Class. No.: </label>TK5105  / ROD