00293nam a2200121Ia 45000030006000000080041000060400015000471000015000622450031000772600034001085460012001420050017001540STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aStuvel, G.  aSystems of social accounts  bOxford University pressc1965  aEnglish20220125165655.0