000 00333nam a2200145Ia 4500
020 _a9810107528
082 _b833
_a500
100 _a"DAVID B.Y.TAN"
245 0 _aCHILD'S PLAY SCIENCE
260 _b,EARLYBIRD
_aSINGAPORE
_c2000
300 _a144
944 _cTR
999 _c370187
_d370187