United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "January 2002," PPI Detailed Report (January 2002) : 14-16. https://fraser.stlouisfed.org/title/63/item/21796/toc/83962 , accessed on May 8, 2024.
United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "January 2002," PPI Detailed Report (January 2002) : 14-16. https://fraser.stlouisfed.org/title/63/item/21796/toc/83962 , accessed on May 8, 2024.