00729cam a22002051  4500001001300000003000400013005001700017008004100034010001700075035001900092040004400111042001200155050002200167110004800189245006200237260004800299300001800347500011000365610004800475l  19000035 DLC20260227111527.0800825s1919    dcu          f000 0 eng c  al  19000035   a(OCoLC)6654667  aLibrary, U.S. Dept. of LaborcNBuUdDLC  apremarc00aHD7653b.A5 1919a1 aUnited States.bWorking conditions service.10aTreatment of industrial problems by constructive methods.  aWashington,bU.S. Govt. Print. Off.,c1919.  a15 p.c23 cm.  aAt head of title: U.S. Department of Labor. Working Conditions Service, Grant Hamilton, director general.10aUnited States.bWorking conditions service.