APA (7e ed.) Bronvermelding

Não informado. (2001). Bulletin of the World Health Organization. World Health Organization.

Chicago (17e ed.) Bronvermelding

Não informado. Bulletin of the World Health Organization. Geneva, Suíça: World Health Organization, 2001.

MLA (8e ed.) Bronvermelding

Não informado. Bulletin of the World Health Organization. World Health Organization, 2001.

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