000 00373nam a2200157Ia 4500
020 _a0000000000
040 _cPK-LaCSN
082 _a540
100 _aK.S.Chua
245 0 _aChemistry 1000 M C Q With Helps O Level
260 _c2011
_bRedspot Publishing
_aSingapore
300 _a299
942 _cTR
999 _c861769
_d861746