World Health Organization. (2009). Calcium and magnesium in drinking water: Public health significance (Primera edición.). World Health Organization.
Citazione stile Chigago Style (17a edizione)World Health Organization. Calcium and Magnesium in Drinking Water: Public Health Significance. Primera edición. Geneva: World Health Organization, 2009.
Citatione MLA (8a ed.)World Health Organization. Calcium and Magnesium in Drinking Water: Public Health Significance. Primera edición. World Health Organization, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.