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. "December 1944," Federal Reserve Bulletin (December 1944) : 88-88. https://fraser.stlouisfed.org/title/62/item/21120/toc/348222 , accessed on May 5, 2024.