1. Bainton, R. (1950). Here I stand: A life of Martin Luther. New York: Abingdon-Cokesbury.
2. Bonhoeffer, D. (1943). Letters and papers from prison (Rev, ed. 1967). New York: Macmillan.
3. Bonhoeffer, D. (2005). Ethics. Minneapolis, MN: Fortress.
4. Calvin, J. (1559). The institutes of the Christian religion (trans. ed. June 1960). Philadelphia, PA: Westminster John Knox.
5. Citino, R. (2005). The German way of war: From the thirty years’ war to the Third Reich. Lawrence, KS: University Press of Kansas.