United States. Bureau of Labor Statistics. "Union Wages and Hours: Local Truckdrivers and Helpers, July 1, 1974 : Bulletin of the United States Bureau of Labor Statistics, No. 1882,"
Union Wages and Hours : Local Truckdrivers and Helpers
(1975).
https://fraser.stlouisfed.org/title/3960/item/499183, accessed on November 21, 2024.