United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "March 2006," PPI Detailed Report (March 2006) : 10-12. https://fraser.stlouisfed.org/title/63/item/21845/toc/79576 , accessed on March 28, 2024.
United States. Bureau of Labor Statistics. "Charts," in United States. Bureau of Labor Statistics. "March 2006," PPI Detailed Report (March 2006) : 10-12. https://fraser.stlouisfed.org/title/63/item/21845/toc/79576 , accessed on March 28, 2024.