Price Indexes and Percent Changes for Total Railroad Freight and Selected STCC Groups
United States. Bureau of Labor Statistics. "Price Indexes and Percent Changes for Total Railroad Freight and Selected STCC Groups," in United States. Bureau of Labor Statistics. "May 1979," PPI Detailed Report (May 1979) : 86-86. https://fraser.stlouisfed.org/title/63/item/21522/toc/404037 , accessed on April 18, 2024.