United States. Bureau of Labor Statistics. Industrial Relations Division and United States. Bureau of Labor Statistics. Wage Analysis Branch. "Wage Rates of Union Street-Railway Employees, June 1, 1942 : Bulletin of the United States Bureau of Labor Statistics, No. 731," Union Wage Rates of City Streetcar and Bus Operators (1943). https://fraser.stlouisfed.org/title/4283/item/494972, accessed on August 3, 2024.