000 00256nam a2200097Ia 4500
008 230915s9999 xx 000 0 und d
050 _aQC23.2.N38 2002
100 _aNATIONAL GEOGRAPHIC SOCIETY
245 0 _aINTEGRATED PHYSICS AND CHEMISTRY
942 _cBK
999 _c189354
_d189354