United States. Bureau of Labor Statistics. "Machinery," in United States. Bureau of Labor Statistics. "July 1983," PPI Detailed Report (July 1983) : 64-75. https://fraser.stlouisfed.org/title/63/item/21572/toc/192879 , accessed on March 28, 2024.
United States. Bureau of Labor Statistics. "Machinery," in United States. Bureau of Labor Statistics. "July 1983," PPI Detailed Report (July 1983) : 64-75. https://fraser.stlouisfed.org/title/63/item/21572/toc/192879 , accessed on March 28, 2024.