APA (7th ed.) Citation

Cheetham, D. (2006). The Americas' first colony? A possible Olmec outpost in southern Mexico.

Chicago Style (17th ed.) Citation

Cheetham, David. The Americas' First Colony? A Possible Olmec Outpost in Southern Mexico. 2006.

MLA (9th ed.) Citation

Cheetham, David. The Americas' First Colony? A Possible Olmec Outpost in Southern Mexico. 2006.

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