APA (7th ed.) Citation

(2008). When did plate tectonics begin on planet Earth? Geological Society of America.

Chicago Style (17th ed.) Citation

When Did Plate Tectonics Begin on Planet Earth? Boulder, Colo: Geological Society of America, 2008.

MLA (9th ed.) Citation

When Did Plate Tectonics Begin on Planet Earth? Geological Society of America, 2008.

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