Shay William A <br/><br/>
Understanding Data Communications & Networks 

 - 2nd Ed. 
 -  "Brooks/Cole/Thomson Learning, Australia"  1998 
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>053495054X 
<br/><br/><label>Dewey Class. No.: </label>4.6  / SHA