000 00286nam a2200121Ia 4500
008 160710s1947 xx 000 0 und d
082 _a658.3 C911
100 _aCUSHMAN,FRANK
245 _aIMPROVING SUPERVISION
260 _bJOHN WILEY & SONS
_c1947
300 _a232
942 _2ddc
_cB
999 _c10255
_d10255