000 00281nam a2200121Ia 4500
008 160122s9999 xx 000 0 und d
041 _aEnglish
100 _aJoseph Bergin
245 _aData Abstraction
260 _bDelhi:Mc graw Hill
_c2000
300 _a666p.
650 _aComputer
999 _c4548
_d4548