Stallings, William <br/><br/>
Data and computer communications  [[Book] /] 
William Stallings . 
 - 9th.ed. 
 - Upper Saddle River, N.J. :  Pearson,  2011. 
 - 881 p :   ill ;  23 cm. 
<br/><br/> All age. 
<br/><br/><label>ISBN: </label>9780132172172  199 0132172178  199 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks.<br/>Data transmission systems.
<br/><br/><label>Dewey Class. No.: </label>004.6  / S D 
<br/><br/><label>National Library of Medicine Call No.: </label>004.6  / S D