Conference on Social Insurance (1916 : Washington, D.C.) , Meeker, Royal, 1873-1953 , International Association of Industrial Accident Boards and Commissions and United States. Bureau of Labor Statistics. Proceedings of the Conference on Social Insurance : Bulletin of the United States Bureau of Labor Statistics, No. 212 , Washington, D.C: Government Printing Office, June 1917, https://fraser.stlouisfed.org/title/3853, accessed on February 11, 2026.