Schaeffler, R. (1983). Religionsphilosophie. Alber.
Cita Chicago (17th ed.)Schaeffler, Richard. Religionsphilosophie. Freiburg [u.a.]: Alber, 1983.
Cita MLA (8th ed.)Schaeffler, Richard. Religionsphilosophie. Alber, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.