World Health Organization World Plumbing Council. (2006). Health aspects of plumbing. World health Organization.
Цитирование в стиле Чикаго (17-е изд.)World Health Organization World Plumbing Council. Health Aspects of Plumbing. Geneva: World health Organization, 2006.
Цитирование MLA (8-е изд.)World Health Organization World Plumbing Council. Health Aspects of Plumbing. World health Organization, 2006.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.