Employment of covered workers, by States, and by months
United States. Bureau of Employment Security. "Employment of covered workers, by States, and by months," in United States. Bureau of Employment Security. "Employment Security Memorandum, No. 6," Employment and Pay Rolls in State Unemployment Compensation Systems, 1938 (1938) : 6-6. https://fraser.stlouisfed.org/title/193/item/5442/content/pdf/emppay_esm_194040v2/toc/122079 , accessed on May 15, 2024.