United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "October 2008," PPI Detailed Report (October 2008) : 2-3. https://fraser.stlouisfed.org/title/63/item/21875/toc/355188 , accessed on April 17, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "October 2008," PPI Detailed Report (October 2008) : 2-3. https://fraser.stlouisfed.org/title/63/item/21875/toc/355188 , accessed on April 17, 2024.