United States. Bureau of Labor Statistics. "February 2003," PPI Detailed Report (February 2003). https://fraser.stlouisfed.org/title/63/item/21808, accessed on April 23, 2024.
United States. Bureau of Labor Statistics. "February 2003," PPI Detailed Report (February 2003). https://fraser.stlouisfed.org/title/63/item/21808, accessed on April 23, 2024.