United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "November 1993," PPI Detailed Report (November 1993) : 3-4. https://fraser.stlouisfed.org/title/63/item/21697/toc/330792 , accessed on May 1, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "November 1993," PPI Detailed Report (November 1993) : 3-4. https://fraser.stlouisfed.org/title/63/item/21697/toc/330792 , accessed on May 1, 2024.