United States. Bureau of Economic Analysis. "Travel and Tourism Spending Outpaced Growth in the Overall Economy in the First Quarter of 2013 : Full Release, BEA 13-28," Bureau of Economic Analysis (BEA) News Releases (June 24, 2013). https://fraser.stlouisfed.org/title/6148/item/601551/content/pdf/bea_newsreleases_20130624, accessed on March 22, 2025.