United States. President and Council of Economic Advisers (U.S.). "Gross National Product, Total and Per Capita, in Current and 1959 Prices," in United States. President and Council of Economic Advisers (U.S.). "1960," Economic Report of the President (1960) : 142-142. https://fraser.stlouisfed.org/title/45/item/8131/toc/270002 , accessed on April 17, 2024.