Held Gilbert <br/><br/>
Understanding data communications. 
Held Gilbert 
 - 7 
 - New Delhi  Pearson        2002 
 - xv,765p.  cm. 
<br/><br/><label>Standard No.: </label>85909 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data Communications
<br/><br/><label>Dewey Class. No.: </label>D6,8(B),4, P2