Peebles,  Peyton Z <br/><br/>
Digital communication systems 
by Peyton Z Peebles 
 - Englewood cliffs  Prentice hall  1987 
 - xvi, 432p. 
<br/><br/><label>ISBN: </label>0132119706 
<br/><br/><label>Dewey Class. No.: </label>621.382  / N873