United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "July 1983," PPI Detailed Report (July 1983) : 3-3. https://fraser.stlouisfed.org/title/63/item/21572/toc/192867 , accessed on May 13, 2024.
United States. Bureau of Labor Statistics. "Contents," in United States. Bureau of Labor Statistics. "July 1983," PPI Detailed Report (July 1983) : 3-3. https://fraser.stlouisfed.org/title/63/item/21572/toc/192867 , accessed on May 13, 2024.