APA (7th ed.) Citation

World Tourism Organization. (1977). Evaluating tourism resources. World Tourism Organization.

Chicago Style (17th ed.) Citation

World Tourism Organization. Evaluating Tourism Resources. Madrid: World Tourism Organization, 1977.

MLA (9th ed.) Citation

World Tourism Organization. Evaluating Tourism Resources. World Tourism Organization, 1977.

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