Παραπομπή σε μορφή APA (7η εκδ.)

Nicholi, A. M. (2002). The question of God: C.S. Lewis and Sigmund Freud debate God, love, sex, and the meaning of life. Free Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Nicholi, Armand M. The Question of God: C.S. Lewis and Sigmund Freud Debate God, Love, Sex, and the Meaning of Life. New York: Free Press, 2002.

Παραπομπή σε μορφή MLA (9th εκδ.)

Nicholi, Armand M. The Question of God: C.S. Lewis and Sigmund Freud Debate God, Love, Sex, and the Meaning of Life. Free Press, 2002.