United States. Bureau of Labor Statistics. "August 2001," PPI Detailed Report (August 2001). https://fraser.stlouisfed.org/title/63/item/21790, accessed on May 7, 2024.
United States. Bureau of Labor Statistics. "August 2001," PPI Detailed Report (August 2001). https://fraser.stlouisfed.org/title/63/item/21790, accessed on May 7, 2024.