World Health Organization & ebrary, Inc. (2009). Calcium and magnesium in drinking-water: Public health significance. World Health Organization.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)World Health Organization ба Inc ebrary. Calcium and Magnesium in Drinking-water: Public Health Significance. Geneva, Switzerland: World Health Organization, 2009.
MLA -ийн эшлэл (9 дэх хэвлэлт)World Health Organization ба Inc ebrary. Calcium and Magnesium in Drinking-water: Public Health Significance. World Health Organization, 2009.
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