Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Gross National Product and Income," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "April 1977," Federal Reserve Bulletin (April 1977) : 179-179. https://fraser.stlouisfed.org/title/62/item/20428/toc/110618 , accessed on April 24, 2024.