Halsall, Fred <br/><br/>
Introduction to data communications and computer networks 
Fred Halsall 
 - Wokingham, England :  Addison-Wesley,  c1985. 
 - ix, 270 p.  ill 
 - Electronic systems engineering series .
<br/><br/><label>ISBN: </label>0201145405 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems<br/>Computer networks<br/>Local area networks (Computer networks)<br/>Computer network protocols