United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "August 2012," PPI Detailed Report (August 2012) : 8-10. https://fraser.stlouisfed.org/title/63/item/21921/toc/49782 , accessed on May 9, 2024.
United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "August 2012," PPI Detailed Report (August 2012) : 8-10. https://fraser.stlouisfed.org/title/63/item/21921/toc/49782 , accessed on May 9, 2024.