Não informado. (1926). Bulletin of hygiene. Bureau of Hygiene and Tropical Diseases.
Chicago (17e ed.) BronvermeldingNão informado. Bulletin of Hygiene. London: Bureau of Hygiene and Tropical Diseases, 1926.
MLA (8e ed.) BronvermeldingNão informado. Bulletin of Hygiene. Bureau of Hygiene and Tropical Diseases, 1926.
Let op: Deze citaties zijn niet altijd 100% accuraat.