00287nam a2200121Ia 45000030006000000080041000060400015000471000020000622450045000822600009001275460012001360050017001480STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aMurray Ross, G.  aCase histories in community organization  c1958  aEnglish20220125165523.0