Cita APA (7a ed.)

Warnock, M. (1966). Ethics since 1900 (2nd ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

Warnock, Mary. Ethics Since 1900. 2nd ed. London: Oxford University Press, 1966.

Cita MLA (9a ed.)

Warnock, Mary. Ethics Since 1900. 2nd ed. Oxford University Press, 1966.