00309nam a2200133Ia 45000030006000000080041000060400015000471000020000622450044000822500011001262600009001375460012001460050017001580STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aHamilton Gordon  aTheory and practice of social case work  aSecond  c1956  aEnglish20220125165730.0