"Clarke, Glen E." <br/><br/>
Network+ certification study guide/ 
Glen E. Clarke 
 - New Delhi:  "Tata mcgraw-hill," 
 - 927p. 
<br/><br/><label>ISBN: </label>0-07-063469-6 
<br/><br/><label>Subjects--Index Terms: </label>Networking 
<br/><br/><label>Dewey Class. No.: </label>4.6