Nagpal, D. P. <br/><br/>
Data communication and networking / 
D.P Nagpal 
 - New Delhi :  S.Chand ,  2011. 
 - xxii,568 p.:  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>8121937027 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems.<br/>Computer networks.
<br/><br/><label>LC Class. No.: </label>TK5105  / .N33 2011