Couch, Leon W. <br/><br/>
Digital and analog communication systems / Leon W. Couch II.- 6th ed. 

 - 6e 
 - Upper Saddle River, N.J. : Prentice Hall, c2001. 
 - xxv, 758 p. : ill., maps ; 25 cm. 
<br/><br/><label>ISBN: </label>0130896306 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems.       Digital communications.
<br/><br/><label>Dewey Class. No.: </label>621.382 COU