Department of economic and social development. (1993). The Sex and age distribution of the world populations: The 1992 revesion. UN.
Цитирование в стиле Чикаго (17-е изд.)Department of economic and social development. The Sex and Age Distribution of the World Populations: The 1992 Revesion. New York: UN, 1993.
Цитирование MLA (8-е изд.)Department of economic and social development. The Sex and Age Distribution of the World Populations: The 1992 Revesion. UN, 1993.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.