Bauer, Stephan, 1865-1934 , Hannay, Annie M. (Annie Murray) and Maylander, Alfred. International Labor Legislation and the Society of Nations : Bulletin of the United States Bureau of Labor Statistics, No. 254 , Washington, D.C: Government Printing Office, May 1919, https://fraser.stlouisfed.org/title/3880, accessed on February 12, 2025.