K. G. Beauchamp & Gee-Swee Poo - <br/><br/>
Computer Communications 

 - 3rd ed 
 -   International Thomson Computer Press  ©1995 
<br/><br/><label>ISBN: </label>9781850321682  153 
<br/><br/><label>Dewey Class. No.: </label>004.6 BEA.3