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 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-. "September 1983," Economic Indicators (September 1983) : 11-11. https://fraser.stlouisfed.org/title/1/item/422/toc/153389 , accessed on April 25, 2024.