World Health Organization & ebrary, Inc. (2007). World health statistics 2007. World Health Organization.
Цитирование в стиле Чикаго (17-е изд.)World Health Organization и Inc ebrary. World Health Statistics 2007. Geneva, Switzerland: World Health Organization, 2007.
Цитирование MLA (9-е изд.)World Health Organization и Inc ebrary. World Health Statistics 2007. World Health Organization, 2007.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.