Mairs, John <br/><br/>
VPNs :  a beginner's guide / 
John Mairs 
 - New Delhi :  McGraw-Hill,  c2002 
 - xxi, 596 p. :  ill. ;  24 cm. 
 - Tata McGraw -Hill edition serise .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0070498954 (pbk) :  Rs. 395.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Extranets (Computer networks)
<br/><br/><label>Dewey Class. No.: </label>005.262