United States. Bureau of Economic Analysis. "Travel and Tourism Spending Accelerated in the Second Quarter : Full Release : Travel and Tourism Satellite Account, BEA 16-47,"
Bureau of Economic Analysis (BEA) News Releases
(September 14, 2016).
https://fraser.stlouisfed.org/title/6148/item/602367/content/pdf/bea_newsreleases_20160914, accessed on July 17, 2025.