000 00366nam a2200157Ia 4500
020 _a9789812808103
040 _c.
082 _bT-693
_a500
100 _aLeng, Ho Peck
245 0 _aInternational lower secondary science 1
260 _aSingapore
_c2009
300 _a203
942 _2ddc
_cTB
999 _c707135
_d707135