00298nam a2200109Ia 450000500170000000800410001705000150005810000170007324500430009026000280013365000270016120251229190829.0251229s9999    xx            000 0 und d  aQD 33 .D3   aDavis, J. W. 0aIntroduction to chemistry.cJ. W Davis  aLondonb J.Murrayc1962  aChemistry,Introduction