David A. Stamper & The Saratoga Group - <br/><br/>
Essentials Of Data Communications 

 -   The Benjamin/ Cummings Publishing Company, Inc.  ©1997 
<br/><br/><label>ISBN: </label>9780805377361  74.1 
<br/><br/><label>Dewey Class. No.: </label>004.6 STA