000 00281nam a2200109Ia 4500
008 230130s1991 xx 000 0 und d
041 _aeng
082 _a1.6
100 _aKorth, H. F.
_91483057
245 _aDatabase system concepts
260 _aN. Delhi
_bMcgraw - Hill Inc.,
_c1991
999 _c965693
_d965693