Couch, Leon W. <br/><br/>
Digital and analog communication systems/ 
Leon W. Couch 
 - 7th ed. 
 - New Delhi :  Prentice-Hall,  2008 
 - xxvii, 755 p.;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9788120334113(pbk)  Rs.450.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems<br/>Digital communications
<br/><br/><label>Dewey Class. No.: </label>621.382