Cita APA (7a ed.)

Foot, P. (2001). Natural goodness. Clarendon ; Oxford University Press.

Cita Chicago Style (17a ed.)

Foot, Philippa. Natural Goodness. Oxford : New York: Clarendon ; Oxford University Press, 2001.

Cita MLA (8a ed.)

Foot, Philippa. Natural Goodness. Clarendon ; Oxford University Press, 2001.