United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "July 2015," PPI Detailed Report (July 2015) : 10-13. https://fraser.stlouisfed.org/title/63/item/496045/toc/511838 , accessed on April 25, 2024.
United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "July 2015," PPI Detailed Report (July 2015) : 10-13. https://fraser.stlouisfed.org/title/63/item/496045/toc/511838 , accessed on April 25, 2024.