United Nations. Economic Commission for Europe & UN. (2000). The chemical industry in 1999: Annual review. United Nations.
Цитирование в стиле Чикаго (17-е изд.)United Nations. Economic Commission for Europe и UN. The Chemical Industry in 1999: Annual Review. New York: United Nations, 2000.
Цитирование MLA (8-е изд.)United Nations. Economic Commission for Europe и UN. The Chemical Industry in 1999: Annual Review. United Nations, 2000.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.