000 00338nam a2200145Ia 4500
020 _a0783591241
082 _b332
_a500.030
100 _a"Porter,Alison"
245 0 _aHOW Things Work
260 _b,Time warner books
_ahong kong
_c1997
300 _a64
944 _cR
999 _c629065
_d629065