000 00292nam a2200109Ia 4500
008 130131s9999 xx 000 0 und d
082 _a546 CAR
100 _aE. Cartmell
245 _aValency and molecular structure / Cartmell E.
260 _aButterworth & Co.
650 _aChemistry inorganic
999 _c31718
_d31308