000 00330nam a2200121Ia 4500
008 240201s9999 xx 000 0 eng d
020 _a9781398318281
082 _a004 WAT
100 _aWatson, DavidWilliams, Helen,
245 0 _aCambridge IGCSE and O level computer science 2nd Edition
650 _aCOMPUTER
942 _2ddc
_cBK
999 _c19791
_d19791