APA (7th ed.) Zitazioa
Southwood, N. (2010). Contractualism and the foundations of morality. Oxford University Press.
Chicago Style (17th ed.) Zitazioa
Southwood, Nicholas. Contractualism and the Foundations of Morality. Oxford ; New York: Oxford University Press, 2010.
MLA (9th ed.) Zitazioa
Southwood, Nicholas. Contractualism and the Foundations of Morality. Oxford University Press, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.