Hahn, Harley <br/><br/>
The Internet : Complete Refrence 

 - New Delhi:  TaTa McGraw Hill,   1996. 
 - xxix, 802  ( R14,SH 01). 
<br/><br/><label>ISBN: </label>9780074631621 
<br/><br/><label>Source: </label> Allied Book Company  PKR 1060.88 
<br/><br/><label>Dewey Class. No.: </label>004.67