United States. Bureau of Labor Statistics. "March 1986," PPI Detailed Report (March 1986). https://fraser.stlouisfed.org/title/63/item/21604, accessed on April 25, 2024.
United States. Bureau of Labor Statistics. "March 1986," PPI Detailed Report (March 1986). https://fraser.stlouisfed.org/title/63/item/21604, accessed on April 25, 2024.