United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "July 2006," PPI Detailed Report (July 2006) : 14-16. https://fraser.stlouisfed.org/title/63/item/21848/toc/426865 , accessed on April 19, 2024.
United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "July 2006," PPI Detailed Report (July 2006) : 14-16. https://fraser.stlouisfed.org/title/63/item/21848/toc/426865 , accessed on April 19, 2024.