APA (7e ed.) Bronvermelding

Não informado. (1918). Commonwealth. Department of Public Health.

Chicago (17e ed.) Bronvermelding

Não informado. Commonwealth. Boston, Mass: Department of Public Health, 1918.

MLA (8e ed.) Bronvermelding

Não informado. Commonwealth. Department of Public Health, 1918.

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