Obenauer, Marie Louise and United States. Bureau of Labor Statistics. Hours, Earnings, and Duration of Employment of Wage-Earning Women in Selected Industries in the District of Columbia : Bulletin of the United States Bureau of Labor Statistics, No. 116 , Washington, D.C: Government Printing Office, April 8, 1913, https://fraser.stlouisfed.org/title/3791, accessed on September 5, 2024.