United States. Bureau of Labor Statistics. "Metal Products," in United States. Bureau of Labor Statistics. "May 1983," PPI Detailed Report (May 1983) : 89-95. https://fraser.stlouisfed.org/title/63/item/21570/toc/268026 , accessed on March 28, 2024.
United States. Bureau of Labor Statistics. "Metal Products," in United States. Bureau of Labor Statistics. "May 1983," PPI Detailed Report (May 1983) : 89-95. https://fraser.stlouisfed.org/title/63/item/21570/toc/268026 , accessed on March 28, 2024.