Halsall/ Fred  <br/><br/>
Data communications 

 - Wokington  Addison Wesley Pub  1992 
 - 772 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>communication
<br/><br/><label>Dewey Class. No.: </label>4.6  / HAL