Dumas, Barry M <br/><br/>
Principles of computer networks and communications 

 - New Delhi  Pearson Education  2012 
 - xxxiii, 343p.  
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9788131790625 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer communications<br/>Computer networks<br/>Digital communication techniques<br/>Error control<br/>LAN<br/>Network security -- Computer<br/>Wireless networks