U.S. International Trade in Goods and Services: March 2020 : Tables: U.S. International Trade in Goods and Services, 1960-Present, BEA 20-21, CB 20-66
United States. Bureau of Economic Analysis. "U.S. International Trade in Goods and Services: March 2020 : Tables: U.S. International Trade in Goods and Services, 1960-Present, BEA 20-21, CB 20-66," Bureau of Economic Analysis (BEA) News Releases (May 5, 2020). https://fraser.stlouisfed.org/title/6148/item/602896/content/xlsx/bea_newsreleases_20200505_us-trade-in-goods-and-services-1960present, accessed on May 18, 2024.