Não informado. (2001). Annuaire sanitaire international. Societe des Nations, Organisation d' Hygiene.
Lua i Stíl Chicago (17ú heag.)Não informado. Annuaire Sanitaire International. Geneve, Suíça: Societe des Nations, Organisation d' Hygiene, 2001.
Lua MLA (8ú heag.)Não informado. Annuaire Sanitaire International. Societe des Nations, Organisation d' Hygiene, 2001.
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