Halsall, Fred <br/><br/>
Data Communications Computer Networks and Open System 

 - 4th 
 - Singapore  Addison- Wesley  1999 
<br/><br/><label>ISBN: </label>81-7808-098-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data Communication
<br/><br/><label>Dewey Class. No.: </label>004.67  / HAL