APA (7e ed.) Bronvermelding

Não informado. (1973). Bulletin of the Pan American Health Organization. Pan American Health Organization.

Chicago (17e ed.) Bronvermelding

Não informado. Bulletin of the Pan American Health Organization. Washington: Pan American Health Organization, 1973.

MLA (8e ed.) Bronvermelding

Não informado. Bulletin of the Pan American Health Organization. Pan American Health Organization, 1973.

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