000 00345nam a2200145Ia 4500
020 _a9812084282
082 _b3300685
_a300
100 _a"Hoong, Tho Lai"
245 0 _aLower Secondary Science 1
260 _b,Pan pacific
_asingapore
_c1997
300 _a287
944 _cTB
999 _c387783
_d387783