Couch, Leon W. <br/><br/>
Digital and analog communication systems  [Book] / 
Leon W. Couch II. 
 - 6th ed. 
 - Delhi :  Pearson Educatin of India,  2007. 
 - xxv, 752 p. :  ill., maps ;  25 cm. 
<br/><br/> All. 
<br/><br/><label>ISBN: </label>8131707377 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems.<br/>Digital communications.
<br/><br/><label>Dewey Class. No.: </label>621.382