Halsall, Fred. <br/><br/>
Data communications, computer networks and OSI / 
Fred Halsall. 
 - 2nd. ed. 
 - Wokingham, Eng. :  Addison-Wesley,  1988. 
 - 549 p. :  ill. ;  24 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0201182440 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems.<br/>Computer networks.<br/>Local area network (Computer network).<br/>Computer network.