O'Brien, James A <br/><br/>
Introduction to information systems 

 - 12 
 - New Delhi  Tata McGraw-Hill  2005 
<br/><br/> CDBK2259. 
<br/><br/><label>ISBN: </label>70589712 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information systems