Stallings, William; Slyke, Richard Van <br/><br/>
Business data communications 

 - 2nd ed. 
 - Macmillan College Publishing Colony  New York  1994 
 - xix,658 
<br/><br/>
<br/><br/><br/>E 
<br/><br/><label>Universal Decimal Class. No.: </label>001.64404