United States. Bureau of Labor Statistics. "Wages and Hours of Labor in the Slaughtering and Meat-Packing Industry, 1927 : Bulletin of the United States Bureau of Labor Statistics, No. 472," Wages and Hours of Labor in the Slaughtering and Meat-Packing Industry (1929). https://fraser.stlouisfed.org/title/3926/item/493182, accessed on September 10, 2024.