Employment and Earnings, United States, 1909-78 : Bulletin of the United States Bureau of Labor Statistics, No. 1312-11
United States. Bureau of Labor Statistics. "Employment and Earnings, United States, 1909-78 : Bulletin of the United States Bureau of Labor Statistics, No. 1312-11," Employment and Earnings, United States (1979). https://fraser.stlouisfed.org/title/189/item/522867, accessed on April 19, 2024.