000 00258nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a658.5
_bINT
245 0 _aIntroduction to work study
260 _aGeneva
_bILO
_c1974
650 _aWork study
942 _cBK
999 _c22970
_d22970