000 00302nam a2200097Ia 4500
008 130131s9999 xx 000 0 und d
245 _aA level 1000 chemistry MCQ with HELPS
260 _bSingapore : Redsport, 2011
300 _a299 p. : ill. ; 24 cm.
650 _aChemistry --Examinations, questions, etc
999 _c33495
_d33085