United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "June 2014," PPI Detailed Report (June 2014) : 2-3. https://fraser.stlouisfed.org/title/63/item/21943/toc/335215 , accessed on May 11, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "June 2014," PPI Detailed Report (June 2014) : 2-3. https://fraser.stlouisfed.org/title/63/item/21943/toc/335215 , accessed on May 11, 2024.