APA

Bonhoeffer D., . (1967). Letters and papers from prison. New York: Macmillan.

Chicago

Bonhoeffer Dietrich, . 1967. Letters and papers from prison. New York: Macmillan.

Harvard

Bonhoeffer D., . (1967). Letters and papers from prison. New York: Macmillan.

MLA

Bonhoeffer Dietrich, . Letters and papers from prison. New York: Macmillan. 1967.