Cita APA (7th ed.)

Bradley, F. H. (1927). Ethical studies (2a. ed.). Oxford University.

Cita Chicago (17th ed.)

Bradley, F. H. Ethical Studies. 2a. ed. Londres: Oxford University, 1927.

Cita MLA (9th ed.)

Bradley, F. H. Ethical Studies. 2a. ed. Oxford University, 1927.