00293nam a2200121Ia 45000030006000000080041000060400015000471000031000622450040000932600009001335460012001420050017001540STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aWalter Friedlander; Editor  aConcepts and methods of social work  c1964  aEnglish20220125165524.0