000 00270nam a2200109Ia 4500
008 170711s9999 xx 000 0 und d
050 _a540 B812
100 _a"Brown, Theodore, L."
245 0 _aChemistry: the central science
260 _c2000
942 _2lcc
_cBK
_kCirc.
999 _c19664
_d19664