United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "July 2012," PPI Detailed Report (July 2012) : 9-11. https://fraser.stlouisfed.org/title/63/item/21920/toc/386328 , accessed on April 17, 2024.
United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "July 2012," PPI Detailed Report (July 2012) : 9-11. https://fraser.stlouisfed.org/title/63/item/21920/toc/386328 , accessed on April 17, 2024.