Penner, Harold. “Niebuhr, Hromadka, Troeltsch, and Barth: The Significance of Theology of History for Christian Social Ethics, by Kosuke Nishitani”. Arc: The Journal of the School of Religious Studies 30 (May 1, 2002): 253–255. Accessed January 14, 2026. https://arcjournal.library.mcgill.ca/article/view/973.