Gralla, Preston <br/><br/>
How the internet works / 
Preston Gralla 
 - 6th ed. 
 - Indianapolis, Ind. :  Prentice Hall,  2002 
 - xi , 340 p. :  ill. ;  26 cm. 
<br/><br/><label>ISBN: </label>0789725827  RM120.56 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer communication networks