STALLINGS, W. <br/><br/>
Business Data Communications, 

 - 6th Ed. 
 - New Jersey,  Upper Saddle River,  2009. 
 - xvi, 608p,: ill.; figure, table  Glossary, Index & Reference  24cm 
<br/><br/><label>ISBN: </label>978-0-13-606745-0 
<br/><br/><label>Dewey Class. No.: </label>001.64 STA