United States. Bureau of Labor Statistics. "April 2000," PPI Detailed Report (April 2000). https://fraser.stlouisfed.org/title/63/item/21765, accessed on May 8, 2024.
United States. Bureau of Labor Statistics. "April 2000," PPI Detailed Report (April 2000). https://fraser.stlouisfed.org/title/63/item/21765, accessed on May 8, 2024.