World Health Organization. (1998). Guidelines for drinking - water quality: Health Criteria and other supporting information (second.). World Health Organization.
Цитирование в стиле Чикаго (17-е изд.)World Health Organization. Guidelines for Drinking - Water Quality: Health Criteria and Other Supporting Information. second. Geneva: World Health Organization, 1998.
Цитирование MLA (8-е изд.)World Health Organization. Guidelines for Drinking - Water Quality: Health Criteria and Other Supporting Information. second. World Health Organization, 1998.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.