Frenzel, Louis. <br/><br/>
Principles of electronic communication systems / 
Louis Frenzel. 
 - 1 v. (unpaged) ;  24 cm. 
<br/><br/> Economy Edition. 
<br/><br/><label>ISBN: </label>0070667551 (paperback) 9780070667556 (paperback) 
<br/><br/><label>Source: </label> 793.00 PKR