United States. Department of Commerce. "U.S. International Transactions: Third Quarter 2013 : Tables, BEA 13-60," United States Department of Commerce News (December 17, 2013). https://fraser.stlouisfed.org/title/6148/item/601582/content/xls/bea_newsreleases_20131217_tables-only-excel, accessed on June 9, 2026.