United States. Bureau of Economic Analysis. "U.S. International Trade in Goods and Services, January 2021 : Highlights: January 2021 Trade Gap is $68.2 Billion, BEA 21-08, CB 21-33,"
Bureau of Economic Analysis (BEA) News Releases
(March 5, 2021).
https://fraser.stlouisfed.org/title/6148/item/600865/content/pdf/bea_newsreleases_20210305_highlights, accessed on May 21, 2025.