Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Gross National Product or Expenditure," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "July 1958," Federal Reserve Bulletin (July 1958) : 106-106. https://fraser.stlouisfed.org/title/62/item/21283/toc/192121 , accessed on April 25, 2024.