000 00324nam a2200133Ia 4500
008 160930s9999 xx 000 0 und d
020 _a9780070447547
100 _aKorth, Henry F.
245 _aDatabase System Concepts
250 _a2
260 _aNew Delhi
_bMc GRaw-Hill
_c1991
300 _axix,693p.;24cm.
942 _cDB
999 _c8753
_d8753