United States. Bureau of Labor Statistics. "Occupational Status of the Employed and Unemployed, Not Seasonally Adjusted," in United States. Bureau of Labor Statistics. "January 1983," The Employment Situation (February 4, 1983) : 10-10. https://fraser.stlouisfed.org/title/144/item/56052/toc/491187 , accessed on June 29, 2024.