Couch,Leon.W <br/><br/>
Digital and analog communication systems 

 - 5th ed 
 - Prentice-Hall, New Jersey  1997 
 - xx,720 
<br/><br/><label>ISBN: </label>0-13-599028-9 
<br/><br/><label>Dewey Class. No.: </label>621.38 Cou