United States. Bureau of the Census & Jennings, J. T. (1979). Social and economic characteristics of the older population, 1978. U.S. Dept. of Commerce, Bureau of the Census.
Цитирование в стиле Чикаго (17-е изд.)United States. Bureau of the Census и Jerry T. Jennings. Social and Economic Characteristics of the Older Population, 1978. Washington: U.S. Dept. of Commerce, Bureau of the Census, 1979.
Цитирование MLA (8-е изд.)United States. Bureau of the Census и Jerry T. Jennings. Social and Economic Characteristics of the Older Population, 1978. U.S. Dept. of Commerce, Bureau of the Census, 1979.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.