APA (7e ed.) Bronvermelding

Não informado. (1917). City health. Department of Health.

Chicago (17e ed.) Bronvermelding

Não informado. City Health. Detroit, Mich: Department of Health, 1917.

MLA (8e ed.) Bronvermelding

Não informado. City Health. Department of Health, 1917.

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