APA (7e ed.) Bronvermelding

Não informado. (1970). Pollution Abstracts. Cambridge Scientific Abstracts.

Chicago (17e ed.) Bronvermelding

Não informado. Pollution Abstracts. Bethesda, Md: Cambridge Scientific Abstracts, 1970.

MLA (8e ed.) Bronvermelding

Não informado. Pollution Abstracts. Cambridge Scientific Abstracts, 1970.

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