000 00349nam a2200145Ia 4500
020 _a9781471809309
082 _bT253
_a001.642
100 _a"Watson ,David"
245 0 _aCambridge IGCSE Computer Science
260 _b,Hodder Education
_c2015
300 _a181
944 _cTB
999 _c529622
_d529622