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. "October 1936," Federal Reserve Bulletin (October 1936) : 68-68. https://fraser.stlouisfed.org/title/62/item/20735/toc/256020 , accessed on May 11, 2024.