Cita APA (7th ed.)

Bonhoeffer, D. (1955). Ethics. Macmillan.

Cita Chicago (17th ed.)

Bonhoeffer, Dietrich. Ethics. New York: Macmillan, 1955.

Cita MLA (9th ed.)

Bonhoeffer, Dietrich. Ethics. Macmillan, 1955.