U.S. International Trade in Goods and Services: February 2018 : Tables, BEA 18-17, CB 18-52
United States. Department of Commerce. "U.S. International Trade in Goods and Services: February 2018 : Tables, BEA 18-17, CB 18-52," United States Department of Commerce News (April 5, 2018). https://fraser.stlouisfed.org/title/6148/item/602624/content/xlsx/bea_newsreleases_20180405_tables-only, accessed on June 16, 2026.