Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Gross National Product, National Income, and Personal Income," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "December 1948," Federal Reserve Bulletin (December 1948) : 70-71. https://fraser.stlouisfed.org/title/62/item/21168/toc/258213 , accessed on April 26, 2024.