United States. Women's Bureau. The Employment of Women in Hazardous Industries in the United States: Summary of State and Federal Laws Regulating the Employment of Women in Hazardous Occupations: 1919 : Women's Bureau Bulletin, No. 6 , Washington: Govt. Print. Off., 1921, https://fraser.stlouisfed.org/title/6002, accessed on November 17, 2024.