United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "May 2005," PPI Detailed Report (May 2005) : 3-4. https://fraser.stlouisfed.org/title/63/item/21835/toc/337249 , accessed on April 23, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "May 2005," PPI Detailed Report (May 2005) : 3-4. https://fraser.stlouisfed.org/title/63/item/21835/toc/337249 , accessed on April 23, 2024.