Stallings, William. <br/><br/>
Data and computer communications / 
William Stallings. 
 - 7th ed. 
 - New Jersey :  Pearson/Prentice Hall,  2004. 
 - xvi, 847 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0131833111 (International ed. : pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks.<br/>Data transmission systems.
<br/><br/><label>Dewey Class. No.: </label>004.6 STA 2004