000 00359nam a2200145Ia 4500
020 _a9789810631154
082 _b1823
_a540
100 _a"Dr Rex M Heyworth & J G R Briggs"
245 0 _aChemistry O level
260 _bHodder Education
_aSingapore
_c2013
300 _a459
944 _cTB
999 _c503784
_d503784