United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "June 2015," PPI Detailed Report (June 2015) : 10-13. https://fraser.stlouisfed.org/title/63/item/495673/toc/511680 , accessed on April 20, 2024.
United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "June 2015," PPI Detailed Report (June 2015) : 10-13. https://fraser.stlouisfed.org/title/63/item/495673/toc/511680 , accessed on April 20, 2024.