United States. Bureau of Labor Statistics. "Wage Chronology: Aluminum Co. of America with United Steelworkers of America and Aluminum Workers International Union, November 1939-January 1974 : Bulletin of the United States Bureau of Labor Statistics, No. 1815," Wage Chronology: Aluminum Co. of America with United Steelworkers of America and Aluminum Workers International Union (1974). https://fraser.stlouisfed.org/title/4643/item/499056, accessed on March 24, 2025.