United States. Bureau of Labor Statistics. "March 2004," PPI Detailed Report (March 2004). https://fraser.stlouisfed.org/title/63/item/21821, accessed on April 25, 2024.
United States. Bureau of Labor Statistics. "March 2004," PPI Detailed Report (March 2004). https://fraser.stlouisfed.org/title/63/item/21821, accessed on April 25, 2024.