Tillich, P., & Gomes, P. J. (2000). The courage to be (2nd ed.). Yale University Press.
Tohutoru Kātū Chicago (17th ed.)Tillich, Paul, me Peter J. Gomes. The Courage to Be. 2nd ed. New Haven: Yale University Press, 2000.
Tohutoro MLA (9th ed.)Tillich, Paul, me Peter J. Gomes. The Courage to Be. 2nd ed. Yale University Press, 2000.
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