Shay, William A. <br/><br/>
UNDERSTANDING DATA COMMUNICATIONS AND NETWORKS /  
 Understanding data communications & networks 
WILLIAM A. SHAY 
 - SECOND EDITION 
 - xx, 711 pages :   illustrations ;   24 cm 
<br/><br/> Includes index  Includes exercises 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>9780534950545  RM378.98 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks<br/>Data tranmission systems
<br/><br/><label>Dewey Class. No.: </label>004.6