000 00294nam a2200121Ia 4500
008 220201s1993 xx 000 0 eng d
082 _a005.74
_bOCC
100 _aOccaroh,Val
245 0 _aRelations database theory & practice
260 _bDelhi: BPB Pub
_c1993
300 _a304
942 _2ddc
999 _c86460
_d86460