Bonhoeffer, D. (1955). Ethics. Macmillan.
Lua i Stíl Chicago (17ú heag.)Bonhoeffer, Dietrich. Ethics. New York: Macmillan, 1955.
Lua MLA (9ú heag.)Bonhoeffer, Dietrich. Ethics. Macmillan, 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.