United States. Bureau of Labor Statistics. "Price Movements," in United States. Bureau of Labor Statistics. "May 2003," PPI Detailed Report (May 2003) : 5-8. https://fraser.stlouisfed.org/title/63/item/21811/toc/411038 , accessed on April 24, 2024.
United States. Bureau of Labor Statistics. "Price Movements," in United States. Bureau of Labor Statistics. "May 2003," PPI Detailed Report (May 2003) : 5-8. https://fraser.stlouisfed.org/title/63/item/21811/toc/411038 , accessed on April 24, 2024.