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. "January 1944," Federal Reserve Bulletin (January 1944) : 94-94. https://fraser.stlouisfed.org/title/62/item/21065/toc/285583 , accessed on March 18, 2024.