Unamuno y Jugo, M. d., Kerrigan, A., & Nozick, M. (1974). The agony of Christianity and essays on faith. Princeton University Press.
Lua i Stíl Chicago (17ú heag.)Unamuno y Jugo, Miguel de, Anthony Kerrigan, agus Martin Nozick. The Agony of Christianity and Essays on Faith. [Princeton, N.J.]: Princeton University Press, 1974.
Lua MLA (9ú heag.)Unamuno y Jugo, Miguel de, et al. The Agony of Christianity and Essays on Faith. Princeton University Press, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.