00861cam a22002411 4500001001300000003000400013005001700017008004100034010001700075035002000092040001800112050002500130100003600155245010000191260004800291300002100339440005400360500011700414650002000531650002300551650001300574740003200587l 34000025 DLC20260227111534.0931014s1934 dcu f000 0 eng  al 34000025  a(OCoLC)29014166 aDLCcOrUdDLC00aHD6093b.A35 no. 1161 aBest, Ethel L.q(Ethel Lombard)12aA study of a change from one shift of 9 hours to two shifts of 6 hours each,cby Ethel L. Best. aWashington,bU.S. Govt. print. off.,c1934. av, 14 p.c23 cm. 0aBulletin (United States. Women's Bureau)vno. 116 aAt head of title: U.S. Department of labor. Fransis Perkins, secretary. Woman's bureau. Mary Anderson, director. 0aHours of labor. 0aWomenxEmployment. 0aFatigue.0 aTwo shifts of 6 hours each.