United States. Bureau of Labor Statistics. "Wage Chronology: International Shoe Co., 1945-74 : Bulletin of the United States Bureau of Labor Statistics, No. 1718," Wage Chronology: International Shoe Co., the Shoe Workers, and the Boot and Shoe Workers (1972). https://fraser.stlouisfed.org/title/4888/item/498775, accessed on November 17, 2024.