United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "January 2006," PPI Detailed Report (January 2006) : 11-13. https://fraser.stlouisfed.org/title/63/item/21843/toc/64708 , accessed on March 28, 2024.
United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "January 2006," PPI Detailed Report (January 2006) : 11-13. https://fraser.stlouisfed.org/title/63/item/21843/toc/64708 , accessed on March 28, 2024.