United States. Bureau of Labor Statistics. "Wages and Hours of Union Motortruck Drivers and Helpers, June 1, 1942 : Bulletin of the United States Bureau of Labor Statistics, No. 732,"
Union Wages and Hours : Local Truckdrivers and Helpers
(1943).
https://fraser.stlouisfed.org/title/3960/item/494913, accessed on December 20, 2024.