APA (7e ed.) Bronvermelding

Não informado. (1980). Proceedings of the National Academy of Sciences of the United States of America. National Academy of Sciences.

Chicago (17e ed.) Bronvermelding

Não informado. Proceedings of the National Academy of Sciences of the United States of America. Washington: National Academy of Sciences, 1980.

MLA (8e ed.) Bronvermelding

Não informado. Proceedings of the National Academy of Sciences of the United States of America. National Academy of Sciences, 1980.

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