United States. Bureau of Labor Statistics. "Machinery," in United States. Bureau of Labor Statistics. "May 1982," PPI Detailed Report (May 1982) : 36-40. https://fraser.stlouisfed.org/title/63/item/21558/toc/243392 , accessed on April 18, 2024.
United States. Bureau of Labor Statistics. "Machinery," in United States. Bureau of Labor Statistics. "May 1982," PPI Detailed Report (May 1982) : 36-40. https://fraser.stlouisfed.org/title/63/item/21558/toc/243392 , accessed on April 18, 2024.