United Nations Conference on International Travel and Tourism Rome & United Nations. (1964). Recommendations on international travel and tourism. United Nations.
Цитирование в стиле Чикаго (17-е изд.)United Nations Conference on International Travel and Tourism Rome и United Nations. Recommendations on International Travel and Tourism. [New York]: United Nations, 1964.
Цитирование MLA (9-е изд.)United Nations Conference on International Travel and Tourism Rome и United Nations. Recommendations on International Travel and Tourism. United Nations, 1964.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.