000			00342nam a2200121Ia 4500
001			82833
008			170722s9999 xx 000 0 und d
100			_aPowdermaker, Florence B.
245			_aGroup Psychotherapy. _bStudies in methodology of research and therapy,report. /
260			_c1953.
700			_aAnd Frank , Jerome D.
942			_cGEN
999			_c44621 _d44621