United States. President and Council of Economic Advisers (U.S.). "International Investment Position of the United States at Year-End," in United States. President and Council of Economic Advisers (U.S.). "1998," Economic Report of the President (1998) : 409-409. https://fraser.stlouisfed.org/title/45/item/8097/toc/171754 , accessed on April 24, 2024.