United States. President and Council of Economic Advisers (U.S.). "United States Balance of Payments with Individual Areas," in United States. President and Council of Economic Advisers (U.S.). "1957," Economic Report of the President (1957) : 209-210. https://fraser.stlouisfed.org/title/45/item/8128/toc/102456 , accessed on April 23, 2024.