United States. Bureau of Labor Statistics. Wage Chronology: United States Steel Corporation and United Steelworkers of America (AFL-CIO), March 1937-April 1974 : Bulletin of the United States Bureau of Labor Statistics, No. 1814 , Washington, D.C: U.S. Dept. of Labor Bureau of Labor Statistics, 1974, https://fraser.stlouisfed.org/title/4910, accessed on September 9, 2024.