000 00244nam a2200109Ia 4500
008 200701s1998 xx 000 0 eng d
100 _aULLMAN
245 0 _aPRINCIPLES OF DATA BASE SYSTEM
260 _bTMH
_c1998
300 _a484
942 _2ddc
_cGE
999 _c646
_d646