Couch, Leon W. I. I. <br/><br/>
Digital and analog communication systems / 
by Leon W. I. I. Couch 
 - 6th ed. 
 - Delhi :  Pearson Education Asia,  2002. 
<br/><br/><label>ISBN: </label>8178083280 
<br/><br/><label>Subjects--Index Terms: </label>Analog Communication System Applied physics and engineering Communication Systems - Digital And Analog Digital Communication System 
<br/><br/><label>Dewey Class. No.: </label>621.382