APA (7e ed.) Bronvermelding

Nagel, T. (1978). The possibility of altruism. Princeton University Press.

Chicago (17e ed.) Bronvermelding

Nagel, Thomas. The Possibility of Altruism. Princeton: Princeton University Press, 1978.

MLA (9e ed.) Bronvermelding

Nagel, Thomas. The Possibility of Altruism. Princeton University Press, 1978.