United States. Bureau of Labor Statistics. "February 1978," The Employment Situation (March 10, 1978). https://fraser.stlouisfed.org/title/144/item/56124, accessed on April 18, 2024.
United States. Bureau of Labor Statistics. "February 1978," The Employment Situation (March 10, 1978). https://fraser.stlouisfed.org/title/144/item/56124, accessed on April 18, 2024.