United States. Bureau of Labor Statistics. "Machinery," in United States. Bureau of Labor Statistics. "June 1982," PPI Detailed Report (June 1982) : 38-42. https://fraser.stlouisfed.org/title/63/item/21559/toc/284944 , accessed on March 29, 2024.
United States. Bureau of Labor Statistics. "Machinery," in United States. Bureau of Labor Statistics. "June 1982," PPI Detailed Report (June 1982) : 38-42. https://fraser.stlouisfed.org/title/63/item/21559/toc/284944 , accessed on March 29, 2024.