000			00346nam a2200157Ia 4500
003			0STCL
008			150530s9999 xx 000 0 und d
040			_aSTCL _cSTCL
100			_aHeap Ken
245			_aGroup theory for Social workers
260			_c1977
546			_aEnglish
942			_2ddc _cBK
999			_c15403 _d15403
005			20220125165729.0