Board of Governors of the Federal Reserve System (U.S.), 1935-. "Income and Product Accounts: GNP Expenditures and Gross Saving," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "November 13, 1978," Z.1 Financial Accounts of the United States (1978-11-13) : 8-8. https://fraser.stlouisfed.org/title/93/item/69145/toc/479394 , accessed on December 9, 2023.