COUCH,LEON.W <br/><br/>
DIGITAL AND ANALOG COMMUNICATION SYSTEMS 

 - 6th ed. 
 - NEW DELHI  PEARSON EDUCATION  2001 
 - 752p. 
<br/><br/><label>ISBN: </label>8131707377 
<br/><br/><label>Dewey Class. No.: </label>621.382  / COU