APA (7e ed.) Bronvermelding

Não informado. (1974). Information News and Sources. Science Associates International.

Chicago (17e ed.) Bronvermelding

Não informado. Information News and Sources. New York: Science Associates International, 1974.

MLA (8e ed.) Bronvermelding

Não informado. Information News and Sources. Science Associates International, 1974.

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