Stallings, Walliam. <br/><br/>
Data of computere communications : 
William Stalling. 
 - 7th ed. 
 - Delhi :  Person Education,  2004. 
 - 847 p, :  ill. ;  24 cm. 
<br/><br/>Includes bibography & index. 
<br/><br/><label>ISBN: </label>8129702061 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers networks.
<br/><br/><label>Dewey Class. No.: </label>004.6  / STA