Cita APA (7a ed.)

Henrich, N., & Henrich, J. P. (2007). Why humans cooperate: A cultural and evolutionary explanation. Oxford University Press.

Cita Chicago Style (17a ed.)

Henrich, Natalie, y Joseph Patrick Henrich. Why Humans Cooperate: A Cultural and Evolutionary Explanation. Oxford ; New York: Oxford University Press, 2007.

Cita MLA (9a ed.)

Henrich, Natalie, y Joseph Patrick Henrich. Why Humans Cooperate: A Cultural and Evolutionary Explanation. Oxford University Press, 2007.