Geisler, N. L. (1974). Philosophy of religion. Zondervan.
Cita Chicago (17th ed.)Geisler, Norman L. Philosophy of Religion. Zondervan, 1974.
Cita MLA (9th ed.)Geisler, Norman L. Philosophy of Religion. Zondervan, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.