000 00345nam a2200145Ia 4500
020 _a0895773821
082 _b3461
_a500
100 _a"JUDITH HANN"
245 0 _aHow science works
260 _bNA,Dorling Kindersley Limited
_aLondon
_c1991
300 _a192
944 _cBK
999 _c682001
_d682001