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. "June 1991," Federal Reserve Bulletin (June 1991) : 186-186. https://fraser.stlouisfed.org/title/62/item/20829/toc/113899 , accessed on April 25, 2024.