00809nam a2200265Ia 4500008004100000020001800041050002100059050001800080100002200098245003700120245006500157245002200222250001600244260001500260260001700275260000900292300002000301300002600321300001100347500005000358650002500408650003500433650003300468650004200501160621s9999    xx            000 0 und d  a0-07-121498-4  aComSc HF 5548.32  b.O27 2004 c.1  aO'Brien, James A.  aManagement information systems :  bmanaging information technology in the business enterprise /  cJames A. O'Brien.  a6th Edition  aNew York :  bMcGraw-Hill,  c2004  avarious pages :  bcolor illustrations ;  c28 cm.  aInclude bibliographical references and index.  aElectronic commerce.  aManagement information system.  xBusiness -- Data processing.  xInformation technology -- Management.