Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Freight-Car Loadings, by Classes," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "March 1946," Federal Reserve Bulletin (March 1946) : 114-114. https://fraser.stlouisfed.org/title/62/item/21135/toc/396957 , accessed on April 25, 2024.