United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "August 2008," PPI Detailed Report (August 2008) : 8-10. https://fraser.stlouisfed.org/title/63/item/21873/toc/354372 , accessed on May 10, 2024.
United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "August 2008," PPI Detailed Report (August 2008) : 8-10. https://fraser.stlouisfed.org/title/63/item/21873/toc/354372 , accessed on May 10, 2024.