Gralla, Preston. <br/><br/>
How the internet works   

 - 4th edition.  
 - New Delhi :   Techmedia,   1999. 
<br/><br/><label>ISBN: </label>8176352594 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Science
<br/><br/><label>Dewey Class. No.: </label>004.678  / GRA