Producer Price Indexes and Percent Changes, by Stage of Processing
United States. Bureau of Labor Statistics. "Producer Price Indexes and Percent Changes, by Stage of Processing," in United States. Bureau of Labor Statistics. "March 1978," PPI Detailed Report (March 1978) : 7-7. https://fraser.stlouisfed.org/title/63/item/21508/toc/250329 , accessed on March 28, 2024.