000 00357nam a2200145Ia 4500
020 _a9789812084422
082 _bT-479
_a500
100 _a"Hoong Lai Tho"
245 0 _aLower Secondary Science 1
260 _bPan Pacific Publication
_aSingapoore
_c1997
300 _a367
944 _cTR
999 _c159773
_d159773