000 00294nam a2200121Ia 4500
008 250224s9999 xx 000 0 und d
020 _a333123522
082 _a658.315POR
100 _aPorter Kenneth V
245 0 _aCase Studies in Human Relation
260 _bMacmillan
_c1971
942 _cBK
999 _c434441
_d434441