_Data and communications[ 4th ed.]  

 - New York Macmillan 1994  
 - xv,875p.  
<br/><br/> Includes index.   Includes index.  
<br/><br/><label>ISBN: </label>24154415 
<br/><br/><label>Subjects--Topical Terms: </label><br/>_Data transmission 
<br/><br/><label>LC Class. No.: </label>TK 5105.S73 1994