00306nam a2200133Ia 45000030006000000080041000060400015000471000029000622450022000912500010001132600020001235460012001430050017001550STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aBlack, N.H.; Davis, H.N.  aPractical physics  aFirst  bMacmillanc1925  aEnglish20220125170113.0