Stallings, William <br/><br/>
Data and computer communications / 
William Stallings 
 - 8th ed. 
 - Upper Saddle River, NJ :  Pearson Prentice Hall,  2007 
 - xviii, 878 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>0132433109 0132381958 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems<br/>Computer networks