000 00278 a2200121 4500
080 _a658.314
_bR 964 A
245 1 _aABC of supervision
_cby L. Russell
260 _aLondon
_bPitman
_c1972
650 _aSupervision
100 1 _aRussell, L.
_d
300 _a88 p.
901 _a160872
999 _c88556
_d88556