Couch, Leon W  <br/><br/>
Digital and analog communication systems 

 - New York:   Macmillan Publishing Company,    1990 
 - 766p. 
<br/><br/><label>ISBN: </label>0-02-946062-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digital 
<br/><br/><label>Subjects--Index Terms: </label>Communication  
<br/><br/><label>Universal Decimal Class. No.: </label>621.39  / N0