Industry and Industry-Classified Product Indexes Deleted from the Producer Price Index
United States. Bureau of Labor Statistics. "Industry and Industry-Classified Product Indexes Deleted from the Producer Price Index," in United States. Bureau of Labor Statistics. "July 1990," PPI Detailed Report (July 1990) : 205-207. https://fraser.stlouisfed.org/title/63/item/21658/toc/92504 , accessed on May 5, 2024.