Harsall, Fred. <br/><br/>
Data communications, computer networks and open systems / 
Fred Halsall. 
 - 4th ed. 
 - Harlow, England :  Addison-Wesley Pub. Co.,  c1996. 
 - xvi, 907p. :  black and white illustrations ;  21 cm. 
<br/><br/> Includes glossary and index. 
<br/><br/><label>ISBN: </label>0201306281 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Local area networks (Computer networks).<br/>Computer network protocols.<br/>Computer networks.<br/>Data transmission systems.<br/>Wide area networks (Computer networks).
<br/><br/><label>Dewey Class. No.: </label>CIR 004.65 H165d 1996