United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "August 2006," PPI Detailed Report (August 2006) : 3-4. https://fraser.stlouisfed.org/title/63/item/21849/toc/342371 , accessed on March 28, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "August 2006," PPI Detailed Report (August 2006) : 3-4. https://fraser.stlouisfed.org/title/63/item/21849/toc/342371 , accessed on March 28, 2024.