APA (7th ed.) Citation

(2020). The geologic time scale 2020. Elsevier.

Chicago Style (17th ed.) Citation

The Geologic Time Scale 2020. Amsterdam: Elsevier, 2020.

MLA (9th ed.) Citation

The Geologic Time Scale 2020. Elsevier, 2020.

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