00291nam a2200121Ia 45000030006000000080041000060400015000471000038000622450031001002600009001315460012001400050017001520STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aInstitute of Economic Engineering  aTime study and rate fixing  c1945  aEnglish20220125165522.0