Brijendra Singh. <br/><br/>
Data Communications and Computer Networks 
Singh, Brijendra. 
 - 4th ed. 
 - Delhi  PHL Learning private limited  2014 
 - xvii, 482 p  ill(not coloured)includes bibliography and index  24 cm 
<br/><br/><label>ISBN: </label>9788120349070  purchase 
<br/><br/><label>LC Class. No.: </label>TK 5105  / .S56 2014 c1