United States. Bureau of Labor Statistics. "May 1988," The Employment Situation (June 3, 1988). https://fraser.stlouisfed.org/title/144/item/56202, accessed on April 23, 2024.
United States. Bureau of Labor Statistics. "May 1988," The Employment Situation (June 3, 1988). https://fraser.stlouisfed.org/title/144/item/56202, accessed on April 23, 2024.