1981. Arsenic: Executive summary. Geneva: World Health Organization.
Citace podle APA (7th ed.)(1981). Arsenic: Executive summary. World Health Organization.
Citace podle Chicago (17th ed.)Arsenic: Executive Summary. Geneva: World Health Organization, 1981.
Citace podle MLA (9th ed.)Arsenic: Executive Summary. World Health Organization, 1981.
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