United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "August 2013," PPI Detailed Report (August 2013) : 9-11. https://fraser.stlouisfed.org/title/63/item/21933/toc/130619 , accessed on April 25, 2024.
United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "August 2013," PPI Detailed Report (August 2013) : 9-11. https://fraser.stlouisfed.org/title/63/item/21933/toc/130619 , accessed on April 25, 2024.