United States. Bureau of Economic Analysis. "U.S. International Trade in Goods and Services: February 2006 : Full Release, CB 06-52, BEA 06-13, FT-900 (06-02)," Bureau of Economic Analysis (BEA) News Releases (April 12, 2006). https://fraser.stlouisfed.org/title/6148/item/598024/content/pdf/bea_newsrelease_20060412, accessed on March 20, 2025.