APA (7th ed.) Citation

(2012). The geologic time scale 2012. Elsevier.

Chicago Style (17th ed.) Citation

The Geologic Time Scale 2012. Amsterdam [u.a.]: Elsevier, 2012.

MLA (9th ed.) Citation

The Geologic Time Scale 2012. Elsevier, 2012.

Warning: These citations may not always be 100% accurate.