Halsall, Fred <br/><br/>
Data communications,computer networks and open systems / Fred, Halsall. 

 - 4th ed. 
 - Addison-Wesley 
<br/><br/><label>ISBN: </label>020142293X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer network
<br/><br/><label>Dewey Class. No.: </label>004.6 HAL