APA (7th ed.) Citation

World Tourism Organization. Tourism trends worldwide and in Middle East 1950-1990. World Tourism Organization.

Chicago Style (17th ed.) Citation

World Tourism Organization. Tourism Trends Worldwide and in Middle East 1950-1990. Madrid: World Tourism Organization.

MLA (9th ed.) Citation

World Tourism Organization. Tourism Trends Worldwide and in Middle East 1950-1990. World Tourism Organization.

Warning: These citations may not always be 100% accurate.