APA (7 ম সংস্করণ) উদ্ধৃতি

World Tourism Organization. (1999). Tourism 2020 vision: Intraregional and long haul flows. World Tourism Organization.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

World Tourism Organization. Tourism 2020 Vision: Intraregional and Long Haul Flows. Madrid, Spain: World Tourism Organization, 1999.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

World Tourism Organization. Tourism 2020 Vision: Intraregional and Long Haul Flows. World Tourism Organization, 1999.