United States. Department of Commerce. "U.S. International Transactions, Third Quarter 2019 : Tables, BEA 19-68," United States Department of Commerce News (December 19, 2019). https://fraser.stlouisfed.org/title/6148/item/602834/content/xlsx/bea_newsreleases_20191219_tables-only, accessed on May 31, 2026.