000 00342nam a2200145Ia 4500
020 _a9789810107528
082 _b120
_a500
100 _a"Tan. David B.Y"
245 0 _aChild's Play Science
260 _b,Earlybird Books
_aMalaysia
_c1997
300 _a144
944 _cTR
999 _c354571
_d354571