Dennis, Alan. <br/><br/>
Fundamentals of business data communications / 
Alan Dennis, Alexandra Durcikova. 
 - 11th ed. 
 - Hoboken, New Jersey :  John Wiley & Sons Inc,  2012. 
 - v. (various pagings) :  ill. ;  24 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>9187118097922 [IE]  RM208.27 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems.<br/>Computer networks.<br/>Office practice.<br/>Automation.