Producer Price Indexes for the Net Output of Selected Industries and Products
United States. Bureau of Labor Statistics. "Producer Price Indexes for the Net Output of Selected Industries and Products," in United States. Bureau of Labor Statistics. "September 1991," PPI Detailed Report (September 1991) : 15-148. https://fraser.stlouisfed.org/title/63/item/21671/toc/423384 , accessed on April 19, 2024.