United States. Bureau of Labor Statistics. Division of Wage Statistics , United States. Bureau of Labor Statistics. Division of Wages and Industrial Relations and United States. Bureau of Labor Statistics. Office of Wages and Industrial Relations. "Union Wages and Hours of Local-Transit Operating Employees, July 1, 1946 : Bulletin of the United States Bureau of Labor Statistics, No. 903," Union Wages and Hours: Local Transit Operating Employees (1947). https://fraser.stlouisfed.org/title/4441/item/495056, accessed on February 12, 2025.