United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "June 2013," PPI Detailed Report (June 2013) : 2-3. https://fraser.stlouisfed.org/title/63/item/21931/toc/217126 , accessed on May 1, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "June 2013," PPI Detailed Report (June 2013) : 2-3. https://fraser.stlouisfed.org/title/63/item/21931/toc/217126 , accessed on May 1, 2024.