United States. Bureau of Labor Statistics. "December 1979," PPI Detailed Report (December 1979). https://fraser.stlouisfed.org/title/63/item/21529, accessed on May 8, 2024.
United States. Bureau of Labor Statistics. "December 1979," PPI Detailed Report (December 1979). https://fraser.stlouisfed.org/title/63/item/21529, accessed on May 8, 2024.