APA (7e ed.) Bronvermelding

Não informado. Chemical abstracts. Formula index: Index of ring systems. American Chemical Society.

Chicago (17e ed.) Bronvermelding

Não informado. Chemical Abstracts. Formula Index: Index of Ring Systems. Columbus, Ohio: American Chemical Society.

MLA (8e ed.) Bronvermelding

Não informado. Chemical Abstracts. Formula Index: Index of Ring Systems. American Chemical Society.

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