Não informado. Chemical abstracts. Formula index: Index of ring systems. American Chemical Society.
Chicago-Zitierstil (17. Ausg.)Não informado. Chemical Abstracts. Formula Index: Index of Ring Systems. Columbus, Ohio: American Chemical Society.
MLA-Zitierstil (8. Ausg.)Não informado. Chemical Abstracts. Formula Index: Index of Ring Systems. American Chemical Society.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.