Shay, William A. <br/><br/>
Understanding Data Communications and Networks 

 - 3rd ed. 
 - Australia:  Thomson Brooks/Cole  2004 
 - xxv, 766p.:  ill.;26cm. 
<br/><br/> Includes Index 
<br/><br/><label>ISBN: </label>0 534 38317 3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data communications
<br/><br/><label>Dewey Class. No.: </label>004.6