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. "August 1947," Federal Reserve Bulletin (August 1947) : 88-88. https://fraser.stlouisfed.org/title/62/item/21152/toc/175081 , accessed on April 19, 2024.