Average Weekly Hours of Production Workers on Manufacturing Payrolls, by Major Industry Group
United States. Bureau of Labor Statistics. "Average Weekly Hours of Production Workers on Manufacturing Payrolls, by Major Industry Group," in United States. Bureau of Labor Statistics. "Employment and Earnings, United States, 1909-72 : Bulletin of the United States Bureau of Labor Statistics, No. 1312-9," Employment and Earnings, United States (1973) : 13-13. https://fraser.stlouisfed.org/title/189/item/5433/toc/338567 , accessed on April 19, 2024.