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. "October 1950," Federal Reserve Bulletin (October 1950) : 114-114. https://fraser.stlouisfed.org/title/62/item/21190/toc/215103 , accessed on May 8, 2024.