000
00302nam a2200097Ia 4500
008
130131s9999 xx 000 0 und d
245
_a
A level 1000 chemistry MCQ with HELPS
260
_b
Singapore : Redsport, 2011
300
_a
299 p. : ill. ; 24 cm.
650
_a
Chemistry --Examinations, questions, etc
999
_c
33495
_d
33085