00318nam a2200133Ia 45000030006000000080041000060400015000471000026000622450033000882500010001212600024001315460012001550050017001670STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aLakshminarayani, P.S.  aGeaded problems in chemistry  aThird  bS.Viswanathanc1945  aEnglish20220125170237.0