Gilbert Held <br/><br/>
Understaning Data Communications,Ed7 

 - Seventh 
 - New Delhi  Pearson  2002 
<br/><br/><label>ISBN: </label>0000080736 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Data <br/> Understaning<br/>Communications,Ed7 <br/>Data communication
<br/><br/><label>Dewey Class. No.: </label>621.3821