Schaeffer, F. A. (1972). He is there and He is not silent. Tyndale.
Cita Chicago (17th ed.)Schaeffer, Francis A. He Is There and He Is Not Silent. Wheaton: Tyndale, 1972.
Cita MLA (9th ed.)Schaeffer, Francis A. He Is There and He Is Not Silent. Tyndale, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.