United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "July 2003," PPI Detailed Report (July 2003) : 3-4. https://fraser.stlouisfed.org/title/63/item/21813/toc/201045 , accessed on April 18, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "July 2003," PPI Detailed Report (July 2003) : 3-4. https://fraser.stlouisfed.org/title/63/item/21813/toc/201045 , accessed on April 18, 2024.