Barnett. The Collected Sermons of Dietrich Bonhoeffer. Augsburg Fortress Publishers.
芝加哥风格引文Barnett. The Collected Sermons of Dietrich Bonhoeffer. Augsburg Fortress Publishers.
MLA引文Barnett. The Collected Sermons of Dietrich Bonhoeffer. Augsburg Fortress Publishers.
警告：这些引文格式不一定是100％准确.