Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Revenues, Expenses, and Income of Class I Railroads," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "July 1947," Federal Reserve Bulletin (July 1947) : 129-129. https://fraser.stlouisfed.org/title/62/item/21151/toc/186436 , accessed on April 19, 2024.