United States. President and Council of Economic Advisers (U.S.). "U.S. International Trade in Goods, by Principal End-Use Category," in United States. President and Council of Economic Advisers (U.S.). "2001," Economic Report of the President (2001) : 384-384. https://fraser.stlouisfed.org/title/45/item/8100/toc/112440 , accessed on April 19, 2024.