United States. Bureau of Labor Statistics. "Union Wages and Hours of Motortruck Drivers and Helpers, July 1, 1943 : Bulletin of the United States Bureau of Labor Statistics, No. 771," Union Wages and Hours : Local Truckdrivers and Helpers (1944). https://fraser.stlouisfed.org/title/3960/item/494914, accessed on November 17, 2024.