00373nam a2200145Ia 4500001000500000005001700005008004100022020001500063082001800078100001800096245004600114250000700160260002100167650003900188672720261006003950.0120911s9999    xx            000 0 und d  a0534102840  a616.89152 COR  aCorey, Gerald  aTheory and practice of group counselling   a3E  aBrooks/Cole Pub.  aGroup counseling   2. Small groups