Haag, Strphen. <br/><br/>
Information systems essentials / 
Stephen Haag, Daniels College of Business, University of Denver; Maeve Cummings, College of Business, Pittsburg State University. 
 - Third edition. 
 - New York :  McGraw-Hill,  2009. 
 - xxix, 429 pages :  illustrations. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>9780073376752 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management information systems.<br/>Information technology.
<br/><br/><label>LC Class. No.: </label>T 58.6  / HAA 2009.