Percent Changes in Producer Price Indexes for the Output of Selected SIC Industries
United States. Bureau of Labor Statistics. "Percent Changes in Producer Price Indexes for the Output of Selected SIC Industries," in United States. Bureau of Labor Statistics. "March 1981," PPI Detailed Report (March 1981) : 82-83. https://fraser.stlouisfed.org/title/63/item/21544/toc/254067 , accessed on April 25, 2024.