Hanegraaff, H. (1992). Christianity in crisis. Harvest House.
Cita Chicago (17th ed.)Hanegraaff, Hank. Christianity in Crisis. Harvest House, 1992.
Cita MLA (9th ed.)Hanegraaff, Hank. Christianity in Crisis. Harvest House, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.