United States. Bureau of Labor Statistics. "December 2004," PPI Detailed Report (December 2004). https://fraser.stlouisfed.org/title/63/item/21829, accessed on April 18, 2024.
United States. Bureau of Labor Statistics. "December 2004," PPI Detailed Report (December 2004). https://fraser.stlouisfed.org/title/63/item/21829, accessed on April 18, 2024.