United States. Bureau of Labor Statistics. "Unemployed Persons by Reason for Unemployment, Sex, Age, and Color," in United States. Bureau of Labor Statistics. "October 1973," The Employment Situation (November 2, 1973) : 8-8. https://fraser.stlouisfed.org/title/144/item/56070/toc/513119 , accessed on April 24, 2024.