Citação APA (7ª ed.)
World Health Organization & ebrary, Inc. (2009). Calcium and magnesium in drinking-water: Public health significance. World Health Organization.
Citação do estilo Chicago (17ª ed.)
World Health Organization e Inc ebrary. Calcium and Magnesium in Drinking-water: Public Health Significance. Geneva, Switzerland: World Health Organization, 2009.
Citação MLA (9ª ed.)
World Health Organization e Inc ebrary. Calcium and Magnesium in Drinking-water: Public Health Significance. World Health Organization, 2009.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.