United States. Bureau of Labor Statistics. "August 1989," PPI Detailed Report (August 1989). https://fraser.stlouisfed.org/title/63/item/21648, accessed on April 23, 2024.
United States. Bureau of Labor Statistics. "August 1989," PPI Detailed Report (August 1989). https://fraser.stlouisfed.org/title/63/item/21648, accessed on April 23, 2024.