00469nam a2200193Ia 4500003000400000005001700004008004100021020001400062040000700076041001200083082001700095100001800112245002800130260004600158300001200204365001300216650001500229650003100244OSt20251015192544.0210423s2002    xx            000 0 und d  a231029659  cAL  aEnglish  a361.4 bNORS  aHelen Northen  aSocial work with groups  aNew YorkbColumbia University Pressc2002  avii,270  b480cINR  aGroup Work  aSocial Problems & Services