Shay, William A. <br/><br/>
Understanding data communications and networks 

 - 2nd. 
 - New York  Books / Cole  1999 
 - xx, 711p.  24cm. 
<br/><br/><label>ISBN: </label>9812400508 
<br/><br/><label>Subjects--Topical Terms: </label><br/>DATA IN COMPUTER SYSTEMS
<br/><br/><label>Dewey Class. No.: </label>005.71  / SHA