Tomasi Wayne15131 <br/><br/>
Electronic communication systems/5th ed. 

 - 5th ed. 
 - New Delhi  Pearson  2014 
 - 1115p. 
<br/><br/><label>ISBN: </label>0074632000 
<br/><br/><label>Universal Decimal Class. No.: </label>621.39  / TOM