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. "April 1945," Federal Reserve Bulletin (April 1945) : 90-90. https://fraser.stlouisfed.org/title/62/item/21124/toc/94156 , accessed on June 22, 2024.