000 00272nam a2200109Ia 4500
008 230901s9999 xx 000 0 eng d
100 _aSilbuschartz and Korth(Abrahem)
245 0 _aDataARTSse system Concepts
250 _a1
260 _bMACMILLAN
942 _2ddc
_cSCIENCE
999 _c19611
_d19611