United Nations. Department for Development Support and Management Services & UN. (1993). Improving public policy analysis: Study material for top executives. United Nations.
Цитирование в стиле Чикаго (17-е изд.)United Nations. Department for Development Support and Management Services и UN. Improving Public Policy Analysis: Study Material for Top Executives. New York: United Nations, 1993.
Цитирование MLA (8-е изд.)United Nations. Department for Development Support and Management Services и UN. Improving Public Policy Analysis: Study Material for Top Executives. United Nations, 1993.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.