Cita APA (7th ed.)
Bonhoeffer, D., & Bethge, E. (1971). Letters and papers from prison (Enlarged ed.). SCM Press.
Cita Chicago (17th ed.)
Bonhoeffer, Dietrich, i Eberhard Bethge. Letters and Papers from Prison. Enlarged ed. London: SCM Press, 1971.
Cita MLA (9th ed.)
Bonhoeffer, Dietrich, i Eberhard Bethge. Letters and Papers from Prison. Enlarged ed. SCM Press, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.