Tanenbaum, Andrew S. <br/><br/>
Computer Networks / 
by Andrew S. Tanenbaum 
 - 4th Ed. 
 - New Delhi:  Dorling Kindersely,  2007 
 - p.891 
<br/><br/><label>ISBN: </label>8177581651 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Science<br/>Networking
<br/><br/><label>Dewey Class. No.: </label>004.6  / TAN-C.4