United States. Bureau of Labor Statistics , Clark, Lindley D. (Lindley Daniel), 1862-1951 , Callahan, Daniel F. (Daniel Francis) and Sharkey, Charles F., 1894-. "Labor Legislation of 1926 : Bulletin of the United States Bureau of Labor Statistics, No. 434," Labor Legislation of 1912-32 (March 1927). https://fraser.stlouisfed.org/title/3905/item/493124, accessed on March 13, 2025.