00312nam a2200133Ia 45000030006000000080041000060400015000471000017000622450051000792500010001302600009001405460012001490050017001610STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aThomas, A.O.  aUniversity model Q and A chemistry for II year  aSixth  c1993  aEnglish20220125170226.0