000 00310nam a2200121Ia 4500
008 250224s9999 xx 000 0 und d
020 _a978749136598
082 _a004.76SAL
100 _aDavies Helen
245 0 _aInformation Technology Simplified
260 _bSavani's book center ltd
_c1991
942 _cBK
999 _c456532
_d456532