United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "August 2015," PPI Detailed Report (August 2015) : 2-2. https://fraser.stlouisfed.org/title/63/item/500040/toc/513278 , accessed on April 17, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "August 2015," PPI Detailed Report (August 2015) : 2-2. https://fraser.stlouisfed.org/title/63/item/500040/toc/513278 , accessed on April 17, 2024.