National Geographic Society (U.S.). Special Publications Division. (1988). Excursion to enchantment: A journey to the world's most beautiful places. The Society.
Цитирование в стиле Чикаго (17-е изд.)National Geographic Society (U.S.). Special Publications Division. Excursion to Enchantment: A Journey to the World's Most Beautiful Places. Washington, D.C: The Society, 1988.
Цитирование MLA (9-е изд.)National Geographic Society (U.S.). Special Publications Division. Excursion to Enchantment: A Journey to the World's Most Beautiful Places. The Society, 1988.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.