000 00319pam a2200121a 44500
008 160422s9999 xx 000 0 und d
082 _a658.4038 OBR
100 _aObrien, J. A.
245 _aIntroduction to information system.
260 _aChicago
_b IRWIN
_c1995
300 _a530p
650 _aInformation Management
999 _c94365
_d94365