Laudon, Kenneth C., <br/><br/>
Essentials of management information systems :  transforming business and management / 
Kenneth C. Laudon, Jane Price Laudon. 
 - 3rd ed. 
 - Upper Saddle River, N.J. :  Prentice Hall,  c1999. 
 - 1 v. (various pagings) :  col. ill. ;  29 cm.