Ogg, J. G., Ogg, G., & Gradstein, F. M. (2008). The concise geologic time scale (1. publ.). Cambridge Univ. Press.
Chicago Style (17th ed.) CitationOgg, James G., Gabi Ogg, and Felix M. Gradstein. The Concise Geologic Time Scale. 1. publ. Cambridge [u.a.]: Cambridge Univ. Press, 2008.
MLA (9th ed.) CitationOgg, James G., et al. The Concise Geologic Time Scale. 1. publ. Cambridge Univ. Press, 2008.
Warning: These citations may not always be 100% accurate.