Gralla, Preston. <br/><br/>
How the internet works / Preston Gralla ; illustrated by Michael Troller. 

 - 7th ed. 
 - Indianapolis, IN : Que, c2004. 
 - xiii, 354 p. : col. ill. ; 26 cm. 
<br/><br/><label>ISBN: </label>0789729733 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internet--Popular works.
<br/><br/><label>Dewey Class. No.: </label>004.678 GLA