United States. Bureau of Labor Statistics. "Annual Earnings and Employment Patterns of Private Nonagricultural Employees 1973-75 : Bulletin of the United States Bureau of Labor Statistics, No. 2031," Annual Earnings and Employment Patterns, Private Nonagricultural Employment (1979). https://fraser.stlouisfed.org/title/4653/item/499533, accessed on October 7, 2024.