Couch, Leon W. <br/><br/>
Digital and analog communication systems / 
Leon W. Couch II. 
 - 7th ed. 
 - Upper Saddle River, N.J. :  Pearson/Prentice Hall,  2007 
 - xxvii, 751 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references (p. 710-722) and index 
<br/><br/>
<br/><br/><label>ISBN: </label>0131424920  RM485.11 9780131424920 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems<br/>Digital communications