United States. Bureau of Economic Analysis. "Travel and Tourism Spending Decelerated in the Second Quarter of 2013 : Full Release, BEA 13-44," Bureau of Economic Analysis (BEA) News Releases (September 20, 2013). https://fraser.stlouisfed.org/title/6148/item/601567/content/pdf/bea_newsreleases_20130920, accessed on March 20, 2025.