United States. Bureau of Labor Statistics. "Wages and Hours of Labor in the Boot and Shoe Industry, 1910 to 1928 : Bulletin of the United States Bureau of Labor Statistics, No. 498,"
Wages and Hours of Labor in the Boot and Shoe and Hosiery and Underwear Industries
(1929).
https://fraser.stlouisfed.org/title/3916/item/493163, accessed on December 23, 2024.