Cita APA (7th ed.)
Bonhoeffer, D., Kelly, G. B., & Nelson, F. B. (1995). A testament to freedom: The essential writings of Dietrich Bonhoeffer (Rev. ed.). HarperSanFrancisco.
Cita Chicago (17th ed.)
Bonhoeffer, Dietrich, Geffrey B. Kelly, i F. Burton Nelson. A Testament to Freedom: The Essential Writings of Dietrich Bonhoeffer. Rev. ed. [San Francisco, Calif.]: HarperSanFrancisco, 1995.
Cita MLA (9th ed.)
Bonhoeffer, Dietrich, et al. A Testament to Freedom: The Essential Writings of Dietrich Bonhoeffer. Rev. ed. HarperSanFrancisco, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.