Não informado. (1912). Tropical diseases bulletin. Bureau of Hygiene and Tropical Diseases.
Chicago-referens (17:e uppl.)Não informado. Tropical Diseases Bulletin. London: Bureau of Hygiene and Tropical Diseases, 1912.
MLA-referens (8:e uppl.)Não informado. Tropical Diseases Bulletin. Bureau of Hygiene and Tropical Diseases, 1912.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.