United States. Bureau of Labor Statistics. "February 1998," PPI Detailed Report (February 1998). https://fraser.stlouisfed.org/title/63/item/21748, accessed on April 23, 2024.
United States. Bureau of Labor Statistics. "February 1998," PPI Detailed Report (February 1998). https://fraser.stlouisfed.org/title/63/item/21748, accessed on April 23, 2024.