APA (7e ed.) Bronvermelding

Não informado. (1981). Abstracts on hygiene and communicable diseases. Bureau of Hygiene and Tropical Diseases.

Chicago (17e ed.) Bronvermelding

Não informado. Abstracts on Hygiene and Communicable Diseases. London: Bureau of Hygiene and Tropical Diseases, 1981.

MLA (8e ed.) Bronvermelding

Não informado. Abstracts on Hygiene and Communicable Diseases. Bureau of Hygiene and Tropical Diseases, 1981.

Let op: Deze citaties zijn niet altijd 100% accuraat.