00282nam a2200121Ia 45000030006000000080041000060400015000471000024000622450036000862600009001225460012001310050017001430STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aArthur Campbell, J.  aWhy do chemical reactions occur  c1965  aEnglish20220125170242.0