00303nam a2200109Ia 4500008004100000020001500041041001200056100001800068245006100086260003100147650001500178221030s9999    xx            000 0 und d  a0071214984  aEnglish  aJ. A.O` Brien 0aManagement Information Systems 6th Ed.cby J. A.O` Brien  bMc Graw HillaBostonc2004  aManagement