Couch,Leon W.\\    <br/><br/>
Digital and analog communication system.\\\ 
\\\  Leon W. Couch. 
 - 7th ed. 
 - Noida  Pearson  2009 
 - 749p. 
<br/><br/>Index(727-749),bibliography(710-722). 
<br/><br/><label>ISBN: </label>9788131725436 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication.
<br/><br/><label>Dewey Class. No.: </label>001.54/C853d