000 00367nam a2200145Ia 4500
020 _a9780521170635
082 _bT-398
_a001.642
100 _a"leadbetter, chris"
245 0 _acambridge igcse computer studies
260 _bCambridge University Press
_aUK
_c2013
300 _a306
944 _cTR
999 _c190271
_d190271