United States. Bureau of Labor Statistics. "Wages and Hours of Labor in the Iron and Steel Industry, 1907 to 1920 : Bulletin of the United States Bureau of Labor Statistics, No. 305,"
Wages and Hours of Labor in the Iron and Steel Industry in the United States
(July 1922).
https://fraser.stlouisfed.org/title/3923/item/492988, accessed on March 8, 2025.
@FedFRASER