O Brien,James A. <br/><br/>
Introduction to Information Systems/ 
James A .O Brien   George M.Maraks 
 - 4th ed 
 - NewYourk:  McGraw-Hil,  2008 
 - 557:  ill;  26cm 
<br/><br/><label>ISBN: </label>9780071283267 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Introduction to Information Systems
<br/><br/><label>LC Class. No.: </label>HF5548.2  / .O275 2008