United States. Bureau of Labor Statistics. "May 2002," PPI Detailed Report (May 2002). https://fraser.stlouisfed.org/title/63/item/21800, accessed on March 28, 2024.
United States. Bureau of Labor Statistics. "May 2002," PPI Detailed Report (May 2002). https://fraser.stlouisfed.org/title/63/item/21800, accessed on March 28, 2024.