Duck, Michael. <br/><br/>
Data Communications and ComputerNetworks  [Book]. 

 - India  Pearson  2009 
<br/><br/> All. 
<br/><br/><label>ISBN: </label>9788131726082 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data Communications and ComputerNetworks