000 00277nam a2200109Ia 4500
008 170711s9999 xx 000 0 und d
050 _a658.3 C418
100 _a"Certo, Samuel C."
245 0 _aSupervision: concepts & skill building
260 _c2003
942 _2lcc
_cBK
_kCirc.
999 _c20858
_d20858