League of Nations. Secretariat. Health Section & League of Nations. Health Organization. Epidemiological intelligence: Statistics of notifiable diseases. The League.
Lua i Stíl Chicago (17ú heag.)League of Nations. Secretariat. Health Section agus League of Nations. Health Organization. Epidemiological Intelligence: Statistics of Notifiable Diseases. Geneva: The League.
Lua MLA (8ú heag.)League of Nations. Secretariat. Health Section agus League of Nations. Health Organization. Epidemiological Intelligence: Statistics of Notifiable Diseases. The League.
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