Παραπομπή σε μορφή APA (7η εκδ.)

Wider-Smith, A. E., & Wilder-Smith, A. .. (1981). He who thinks has to believe. Bethany.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wider-Smith, A. E., και A .E Wilder-Smith. He Who Thinks Has to Believe. Minneapolis: Bethany, 1981.

Παραπομπή σε μορφή MLA (9th εκδ.)

Wider-Smith, A. E., και A .E Wilder-Smith. He Who Thinks Has to Believe. Bethany, 1981.