00327nam a2200121Ia 45000030006000000080041000060400015000471000018000622450063000802600033001435460012001760050017001880STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aAsinmov Isaac  aUnderstanding physics vol III electron protron and newtron  bGeorge Allen and Unwinc1966  aEnglish20220125170108.0