United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "July 2002," PPI Detailed Report (July 2002) : 10-12. https://fraser.stlouisfed.org/title/63/item/21801/toc/321617 , accessed on April 25, 2024.
United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "July 2002," PPI Detailed Report (July 2002) : 10-12. https://fraser.stlouisfed.org/title/63/item/21801/toc/321617 , accessed on April 25, 2024.