000 00371nam a2200169Ia 4500
020 _a0750212896
040 _cPK-LaCSN
082 _bGOR
_a530
100 _a"Gordon, Maria"
245 0 _aLight
260 _bWayland,
_aHove
_c1994
300 _a32
490 _aSimple Science
942 _2ddc
_cBK
999 _c243775
_d243775