United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "June 2004," PPI Detailed Report (June 2004) : 3-4. https://fraser.stlouisfed.org/title/63/item/21638/toc/366537 , accessed on May 7, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "June 2004," PPI Detailed Report (June 2004) : 3-4. https://fraser.stlouisfed.org/title/63/item/21638/toc/366537 , accessed on May 7, 2024.