000 00230 a2200109 4500
001 76611
082 _a004 NOR
090 _c39142
_d39142
100 _aPeter Norton
245 _aINTRODUCTION TO COMPUTER
260 _aSINGAPUR
_bMcGRAW HILL
942 _aNUST-CAE
999 _c311684
_d311684