United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "August 1993," PPI Detailed Report (August 1993) : 3-4. https://fraser.stlouisfed.org/title/63/item/21694/toc/269340 , accessed on April 30, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "August 1993," PPI Detailed Report (August 1993) : 3-4. https://fraser.stlouisfed.org/title/63/item/21694/toc/269340 , accessed on April 30, 2024.