000 00343nam a2200145Ia 4500
020 _a9789810164638
082 _bT 471
_a540
100 _a"Toon yin tan"
245 0 _aGce O/L chemistry matter
260 _bTime Printer
_aSingapore
_c2005
300 _a452
944 _cTB
999 _c700195
_d700195