United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "July 2017," PPI Detailed Report (July 2017) : 2-2. https://fraser.stlouisfed.org/title/63/item/555152/toc/522219 , accessed on May 11, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "July 2017," PPI Detailed Report (July 2017) : 2-2. https://fraser.stlouisfed.org/title/63/item/555152/toc/522219 , accessed on May 11, 2024.