Clark, Lindley D. (Lindley Daniel), 1862-1951 and United States. Bureau of Labor Statistics. Workmen's Compensation Legislation of the United States and Canada, 1920 to 1922 : Bulletin of the United States Bureau of Labor Statistics, No. 332 , Washington, D.C: G.P.O., June 1923, https://fraser.stlouisfed.org/title/3984, accessed on December 22, 2024.