Stallings, William. <br/><br/>
Data and computer communications /  
William Stallings. 
 - 7th ed. 
 - Upper Saddle River :    Pearson Educational International,    2004 
 - xvi, 847 p. :    ill. ;    24 cm. 
<br/><br/>  International edition. 
<br/><br/>Includes bibliographical references (p.815-822) and index. 
<br/><br/><label>ISBN: </label>0131833111 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Computer networks<br/> Data transmission systems
<br/><br/><label>Dewey Class. No.: </label>004.6