000 00363nam a2200157Ia 4500
020 _a0864381638
040 _cPK-LaCSN
082 _bHAN
_a500
100 _a"Hann, Judith"
245 0 _aHow science works
260 _bDorling Kindersley
_aLondon
_c1992
300 _a32
942 _2ddc
_cBK
999 _c243165
_d243165