Cita APA (7a ed.)

Moore, G. E., & Baldwin, T. (1993). Principia ethica (Rev. ed. with the preface to de second edition and other papers.). University Press.

Cita Chicago Style (17a ed.)

Moore, George Edward, y Thomas Baldwin. Principia Ethica. Rev. ed. with the preface to de second edition and other papers. Cambridge: University Press, 1993.

Cita MLA (9a ed.)

Moore, George Edward, y Thomas Baldwin. Principia Ethica. Rev. ed. with the preface to de second edition and other papers. University Press, 1993.