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

 - 2nd ed. 
 - New Delhi:   Prentice-Hall of India Private Limited,   1980 
 - xii, 628p. 
<br/><br/><label>ISBN: </label>0-87692-168-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Subjects--Index Terms: </label>Communications 
<br/><br/><label>Universal Decimal Class. No.: </label>D 621.38   / M1