APA (7e ed.) Bronvermelding

Não informado. (1965). Birth defects. National Foundation.

Chicago (17e ed.) Bronvermelding

Não informado. Birth Defects. New York: National Foundation, 1965.

MLA (8e ed.) Bronvermelding

Não informado. Birth Defects. National Foundation, 1965.

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