Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (8th εκδ.)

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

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.