00327nam a2200121Ia 4500008004100000082001200041100002800053245004000081250000600121260000900127300000600136650006300142150614s9999    xx            000 0 und d  a7364  A  a  WALTER FRIEDLANDER A.  aCONCEPTS AND METHODS OF SOCIAL WORK  a1  c1958  a0  aCONCEPTS AND METHODS OF SOCIAL WORK  WALTER FRIEDLANDER A.