Cita APA (7th ed.)

Boyd, R., & Richerson, P. J. (2005). The origin and evolution of cultures. Oxford University Press.

Cita Chicago (17th ed.)

Boyd, Robert, i Peter J. Richerson. The Origin and Evolution of Cultures. Oxford ; New York: Oxford University Press, 2005.

Cita MLA (9th ed.)

Boyd, Robert, i Peter J. Richerson. The Origin and Evolution of Cultures. Oxford University Press, 2005.