O'Brien, James A., <br/><br/>
Management information systems :  a managerial end user perspective / 
James A. O'Brien. 
 - 2nd ed. 
 - Homewood, IL :  Irwin,  c1993. 
 - vol.1 : various paging :  col. ill., col. map ;  26 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>0256103461  TZS 27982/= 0256108307 (international ed.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks<br/>Information technology--Management<br/>Electronic commerce
<br/><br/><label>Dewey Class. No.: </label>658.4038011 O'BR