Cita APA (7a ed.)

Asfaw, B., & Gilbert, W. H. (2008). Homo erectus: Pleistocene Evidence from the Middle Awash, Ethiopia. University of California Press.

Cita Chicago Style (17a ed.)

Asfaw, Berhane, y W. Henry Gilbert. Homo Erectus: Pleistocene Evidence from the Middle Awash, Ethiopia. Berkeley: University of California Press, 2008.

Cita MLA (8a ed.)

Asfaw, Berhane, y W. Henry Gilbert. Homo Erectus: Pleistocene Evidence from the Middle Awash, Ethiopia. University of California Press, 2008.