000 00270nam a2200121Ia 4500
008 240531s9999 xx 000 0 und d
020 _a721432395
082 _aJ500 HAR
100 _aHARKER, Jillian.
245 0 _aFUN WITH SCIENCE
260 _aLondon
942 _cJNF
999 _c319623
_d319623