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.). "1990," Economic Report of the President (1990) : 415-415. https://fraser.stlouisfed.org/title/45/item/8161/toc/98423 , accessed on April 27, 2024.