Hughes,Larry <br/><br/>
Introduction to data communications: a practical approach / 
Hughes,Larry. 
 - New Delhi:  Narosa Publishing House,  1997. 
 - xv,502p;25cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>8173191794 
<br/><br/><label>Dewey Class. No.: </label>004.6 HUG