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-. "February 10, 1978," Z.1 Financial Accounts of the United States (1978-02-10) : 8-8. https://fraser.stlouisfed.org/title/93/item/69133/toc/478317 , accessed on April 19, 2024.