World Tourism Organization. (1981). Summary of developments in the fields of world economy, demography and energy: Prospects for tourism. The Organization.
Chicago Style (17th ed.) CitationWorld Tourism Organization. Summary of Developments in the Fields of World Economy, Demography and Energy: Prospects for Tourism. Madrid: The Organization, 1981.
MLA (9th ed.) CitationWorld Tourism Organization. Summary of Developments in the Fields of World Economy, Demography and Energy: Prospects for Tourism. The Organization, 1981.
Warning: These citations may not always be 100% accurate.