Halsall , Fred <br/><br/>
Data communication computer networks and open systems / 
by Fred Halsall 
 - 4th ed. 
 - XV, 907 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Science<br/>Data Communication Computer Networks
<br/><br/><label>Dewey Class. No.: </label>004.6 FRE