01013cam a22002651  4500001001300000003000400013005001700017008004100034010001700075035001900092040004900111050002600160051001100186082001100197100002500208245007100233260004900304300003200353490006100385500018300446500005400629650002000683650002700703999001700730l  44000221 DLC20260227111539.0790508m19449999dcua         f000 0 eng c  al  44000221   a(OCoLC)4939940  aU.S. Dept. of Labor. Libr.cWMUWdOCoLCdDLC00aHD8051b.A62 no. 791,  cCoy 2.  a331.811 aKossoris, Max Davis.10aStudies of the effects of long working hours.cBy Max D. Kossoris.  a[Washington,bU.S. Govt. Print. Off.,c1944-  av.btables, diagrs.c23 cm.0 aU.S. Bureau of Labor Statistics. Bulletin no. 791, 791-A  aAt head of title: United States Dept. of Labor, Frances Perkins, Secretary. Bureau of Labor Statistics, Isador Lubin, Commissioner (on leave) A.F. Hinrichs, Acting Commmissioner.  aAppears also in part in the Monthly labor review. 0aHours of labor. 0aIndustrial efficiency.  c36478d36478