Stallings, William. <br/><br/>
Data and computer communications / 
William Stallings. 
 - 9th ed. 
 - Upper Saddle River, NJ ;  Boston :  Pearson,  c2011. 
 - 881 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references (p. 839-851) and index. 
<br/><br/><label>ISBN: </label>9780132172172 (International ed.) 0132172178 (International ed.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks--Textbooks.<br/>Data transmission systems--Textbooks.
<br/><br/><label>Dewey Class. No.: </label>004.6 STA 2011