Council of Economic Advisers (U.S.) , United States. Congress. Joint Committee on the Economic Report, 1946-1956 and United States. Congress. Joint Economic Committee, 1956-. "Gross Private Domestic Investment in 1987 Dollars," in Council of Economic Advisers (U.S.) , United States. Congress. Joint Committee on the Economic Report, 1946-1956 and United States. Congress. Joint Economic Committee, 1956-. "April 1992," Economic Indicators (April 1992) : 11-11. https://fraser.stlouisfed.org/title/1/item/725/toc/296489 , accessed on April 19, 2024.