Gaya APA

Kelly, G, B, &, N, F, B. (2003). The cost of moral leadership: The spirituality of Dietrich Bonhoeffer. Foreword by Renate Bethge. . Grand Rapids/Cambridge: Grand Rapids/Cambridge William B Eerdmans.

Gaya MLA

Kelly, Geffrey, B., &, Nelson,, F., Burton. "The cost of moral leadership: The spirituality of Dietrich Bonhoeffer. Foreword by Renate Bethge. ". Grand Rapids/Cambridge: Grand Rapids/Cambridge William B Eerdmans, 2003. Buku.