APA (7e ed.) Bronvermelding

Não informado. (1881). Public health bulletin. U.S. Public Health Service.

Chicago (17e ed.) Bronvermelding

Não informado. Public Health Bulletin. Washington: U.S. Public Health Service, 1881.

MLA (8e ed.) Bronvermelding

Não informado. Public Health Bulletin. U.S. Public Health Service, 1881.

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