APA (7th ed.) Citation

Bonhoeffer, D., & Bethge, E. (1962). Letters and papers from prison. Macmillan.

Chicago Style (17th ed.) Citation

Bonhoeffer, Dietrich, and Eberhard Bethge. Letters and Papers from Prison. New York: Macmillan, 1962.

MLA (8th ed.) Citation

Bonhoeffer, Dietrich, and Eberhard Bethge. Letters and Papers from Prison. Macmillan, 1962.