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

 - 12th ed. 
 - Boston   McGraw-Hill/Irwin,  2005. 
 - xxx, (various pagings) :  ill. ;  29 cm. + 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0072890428 
<br/><br/><label>LC Class. No.: </label>HF5548.2  / .Ob6 2005