United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "June 2003," PPI Detailed Report (June 2003) : 3-4. https://fraser.stlouisfed.org/title/63/item/21812/toc/309443 , accessed on April 25, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "June 2003," PPI Detailed Report (June 2003) : 3-4. https://fraser.stlouisfed.org/title/63/item/21812/toc/309443 , accessed on April 25, 2024.