APA (7th ed.) Citation

Nagel, T. (1970). The possibility of altruism. Clarendon Press.

Chicago Style (17th ed.) Citation

Nagel, Thomas. The Possibility of Altruism. Oxford: Clarendon Press, 1970.

MLA (9th ed.) Citation

Nagel, Thomas. The Possibility of Altruism. Clarendon Press, 1970.