Cita APA (7a ed.)

Nowak, M. A., & Highfield, R. (2012). Super cooperators: Altruism, evolution, and why we need each other to succeed. Free.

Cita Chicago Style (17a ed.)

Nowak, Martin A., y Roger Highfield. Super Cooperators: Altruism, Evolution, and Why We Need Each Other to Succeed. New York: Free, 2012.

Cita MLA (9a ed.)

Nowak, Martin A., y Roger Highfield. Super Cooperators: Altruism, Evolution, and Why We Need Each Other to Succeed. Free, 2012.