APA (7th ed.) Zitazioa

Niebuhr, R., & Brown, R. M. (1986). The essential Reinhold Niebuhr: Selected essays and addresses. Yale University Press.

Chicago Style (17th ed.) Zitazioa

Niebuhr, Reinhold, eta Robert McAfee Brown. The Essential Reinhold Niebuhr: Selected Essays and Addresses. New Haven: Yale University Press, 1986.

MLA (9th ed.) Zitazioa

Niebuhr, Reinhold, eta Robert McAfee Brown. The Essential Reinhold Niebuhr: Selected Essays and Addresses. Yale University Press, 1986.