Cita APA (7th ed.)
Tillich, P., & Niebuhr, H. R. The Religious Situation. Meridian Books.
Cita Chicago (17th ed.)
Tillich, Paul, i H. Richard Niebuhr. The Religious Situation. Cleveland, EUA: Meridian Books.
Cita MLA (9th ed.)
Tillich, Paul, i H. Richard Niebuhr. The Religious Situation. Meridian Books.
Atenció: Aquestes cites poden no estar 100% correctes.