000 00342nam a2200145Ia 4500
020 _a9812084282
082 _bT.40
_a500
100 _a"Hoong, Tho Lai"
245 0 _aLower Secondary Science 1
260 _b,Pan pacific
_asingapore
_c1997
300 _a287
944 _cTB
999 _c386907
_d386907