O'Brien, J. A. (1946). The soul, what is it ?: Light from modern science and philosophy. Paulist Press.
Cita Chicago Style (17a ed.)O'Brien, John A. The Soul, What Is It ?: Light from Modern Science and Philosophy. New York, N.Y.: Paulist Press, 1946.
Cita MLA (8a ed.)O'Brien, John A. The Soul, What Is It ?: Light from Modern Science and Philosophy. Paulist Press, 1946.
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