United States. Bureau of Labor Statistics. "October 1997," PPI Detailed Report (October 1997). https://fraser.stlouisfed.org/title/63/item/21744, accessed on April 19, 2024.
United States. Bureau of Labor Statistics. "October 1997," PPI Detailed Report (October 1997). https://fraser.stlouisfed.org/title/63/item/21744, accessed on April 19, 2024.