Não informado. (1912). Tropical diseases bulletin. Bureau of Hygiene and Tropical Diseases.
Cita Chicago Style (17a ed.)Não informado. Tropical Diseases Bulletin. London: Bureau of Hygiene and Tropical Diseases, 1912.
Cita MLA (8a ed.)Não informado. Tropical Diseases Bulletin. Bureau of Hygiene and Tropical Diseases, 1912.
Precaución: Estas citas no son 100% exactas.