000 00301nam a2200109Ia 4500
008 241014s9999 xx 000 0 und d
020 _a9780133546231
082 _a004.21
_bVAL
100 _aValacich, Joseph
245 0 _aEssentials of Systems Analysis and Design /
_cValacich, Joseph
250 _a5th Ed.
999 _c1039
_d1039