Blake,Roy <br/><br/>
Electronic communication systems/2nd ed. 

 - 2nd 
 - Singapore  Thomson  2002 
 - 985p. 
<br/><br/><label>ISBN: </label>981-240-611-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic communication 
<br/><br/><label>Dewey Class. No.: </label>621.39  / BLA 
<br/><br/><label>Universal Decimal Class. No.: </label>621.39 BLA