Panko Raymond R <br/><br/>
Business Data Networks and Telecommunications 

 - 7th  pearson international edition 
 - united states  R.R Donnelley.  2009 
 - 621p;  ill. 
<br/><br/> include index 
<br/><br/><label>ISBN: </label>9780135009390 
<br/><br/><label>LC Class. No.: </label>HD 30.37  / .P 36 2009