000 00282nam a2200121Ia 4500
008 250224s9999 xx 000 0 und d
020 _a748706119
082 _aJ500CHI
100 _aCHILDS, Mary
245 0 _aExploring Science
260 _bStanley Thornes
_c1991
942 _cJBK
999 _c442349
_d442349