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. "June 1943," Federal Reserve Bulletin (June 1943) : 79-79. https://fraser.stlouisfed.org/title/62/item/21058/toc/47289 , accessed on May 4, 2024.