000 00313nam a2200145Ia 4500
008 131111s9999 xx 000 0 und d
100 _aCowan,Bill
245 _aComputer basic
260 _aNew Delhi
260 _bBPB Publication
260 _c1997
300 _a48p.
650 _aComputer
763 _a25486
999 _c33303
_d33303