Cita APA (7a ed.)

Nagel, T. (2016). The Possibility of Altruism. Project Muse.

Cita Chicago Style (17a ed.)

Nagel, Thomas. The Possibility of Altruism. Baltimore, Maryland: Project Muse, 2016.

Cita MLA (8a ed.)

Nagel, Thomas. The Possibility of Altruism. Project Muse, 2016.