Lát'ọwọ́ Wikipedia, ìwé ìmọ̀ ọ̀fẹ́
(ICS, 2004,[1] chart)
References
This reference list does not appear in the article.
- ↑ Gradstein, Felix M.; Ogg, J. G.; Smith, A. G. (2004). A Geologic Time Scale 2004. Cambridge: Cambridge University Press. ISBN 0521786738.