United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "October 1992," PPI Detailed Report (October 1992) : 3-4. https://fraser.stlouisfed.org/title/63/item/21684/toc/217050 , accessed on April 26, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "October 1992," PPI Detailed Report (October 1992) : 3-4. https://fraser.stlouisfed.org/title/63/item/21684/toc/217050 , accessed on April 26, 2024.