Held, Gilbert <br/><br/>
Understanding data communications 

 - New Delhi  Pearson Education  2002 
 - xv, 765 p.  : ill.  ; 24 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9788131708729 (pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data communication<br/>Computer networks--Data transmission--Analog modulation--Digital transmission--Transmission channels--Network design--Satellite communication--Computer software--Network design--FC
<br/><br/><label>Dewey Class. No.: </label>004.6  / HEL