Haag, Stephen. <br/><br/>
Information systems essentials /  
Stephen Haag, Maeve Cummings. 
 - 3rd ed. 
 - Boston :    McGraw-Hill/Irwin,    2009. 
 - xxix, 429 p. ;    29 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0071285490 
<br/><br/><label>LCCN: </label>2008035199 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management information systems.<br/>Information technology.
<br/><br/><label>Dewey Class. No.: </label>658.4038