Cita APA (7a ed.)

Pinker, S. (2011). The better angels of our nature: The decline of violence in history and its causes. Allen Lane.

Cita Chicago Style (17a ed.)

Pinker, Steven. The Better Angels of Our Nature: The Decline of Violence in History and Its Causes. London: Allen Lane, 2011.

Cita MLA (9a ed.)

Pinker, Steven. The Better Angels of Our Nature: The Decline of Violence in History and Its Causes. Allen Lane, 2011.