000 00356nam a2200145Ia 4500
020 _a9789812808110
082 _bT 1749
_a500
100 _a"Ho Peck Leng"
245 0 _aInternational lower secondary science 2
260 _bParamount
_aSingapore
_c2009
300 _a299
944 _cTB
999 _c673515
_d673515