Producer Price Indexes and Percent Changes for Commodity Groupings and Individual Items
United States. Bureau of Labor Statistics. "Producer Price Indexes and Percent Changes for Commodity Groupings and Individual Items," in United States. Bureau of Labor Statistics. "April 1992," PPI Detailed Report (April 1992) : 150-194. https://fraser.stlouisfed.org/title/63/item/21678/toc/121754 , accessed on April 19, 2024.