Warnock, M. (1966). Ethics since 1900 (2nd ed.). Oxford University Press.
Dyfyniad Arddull ChicagoWarnock, Mary. Ethics Since 1900. 2nd ed. London: Oxford University Press, 1966.
Dyfyniad MLAWarnock, Mary. Ethics Since 1900. 2nd ed. Oxford University Press, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.