APA (7e ed.) Bronvermelding

Não informado. (1977). CA selects. Chemical Abstracts Service.

Chicago (17e ed.) Bronvermelding

Não informado. CA Selects. Columbus, Ohio: Chemical Abstracts Service, 1977.

MLA (8e ed.) Bronvermelding

Não informado. CA Selects. Chemical Abstracts Service, 1977.

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