000 00355cam a22000977a 4500
008 180718b1970 xxu||||| |||| 00| 0 eng d
082 _aK508x73 Un3
245 _aIntroduction to supervision : guide for instructors
_cby Civil Service Commission, U.S.A.
260 _aWashington, D.C.
_bCivil Service Commission
_c1970
700 _aU.S.A. Civil Service Commission
999 _c500067
_d500067