New Industry and Industry-Classified Product Indexes Introduced into the Produce Price Index
United States. Bureau of Labor Statistics. "New Industry and Industry-Classified Product Indexes Introduced into the Produce Price Index," in United States. Bureau of Labor Statistics. "February 1991," PPI Detailed Report (February 1991) : 200-202. https://fraser.stlouisfed.org/title/63/item/21665/toc/137164 , accessed on April 23, 2024.